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Genuine BMW - Corporate Logo
T#:21754
Part#: 22110392551
Ships in 1 day
6% off MSRP $ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.99 USD
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6% off MSRP
$ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 29.99 USD
Free Shipping on orders $49 and up


Genuine BMW Set Of Alu. Screws Engine Support -
This item fits the following BMW Chassis:
E70 X5,E82,E83 X3,E85,E86,E89 Z4,E90,E92,E93,F10,F25 X3

E46 Rear Chassis/Subframe Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:91
Part#: TDR4675412
In Stock
Sale - Save 30% $ 193.99

This product was last offered at the strikethrough price on
06-13-2026

$ 135.49 USD
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Sale - Save 30%
$ 193.99

This product was last offered at the strikethrough price on
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$ 135.49 USD
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Updated in 2020 to provide additional reinforcement! The E46 rear driveline and suspension are very similar to that of the E36. An unfortunate side effect of this is that the E46 also shares some of the same problems as the E36. One of these problems is the rear mounting points for the subframe, which can rip out from their spots in the sheet metal. This happens because the rear differential transmits the torsional load from the engine through the subframe, then into the chassis. This constant loading and unloading weakens the sheet metal and causes it to fatigue and separate from the chassis. BMW tried to fix this problem in the E46 by placing a cross member on the front two mounting points of the subframe. This cross member keeps the front mounting points from having problems by placing the bushing and the stud in double-sheer, thus reducing the twisting action on the sheet metal. The unfortunate side effect of this is that the load from the front of the subframe now gets transmitted to the left rear of the subframe. This is where we have seen many failures of the chassis on low mileage street cars and race cars. BMW has also tried to prevent the issue by injecting foam into the open space between the underside of the chassis and the top of the trunk. This seems to work but that does not address the issues of the spot welds failing on the sheetmetal. It can also make any additional work there harder and almost impossible to weld against. Our reinforcement kit has proven over and over again to be effective and the easiest to work with in the long run.

This product reinforces the chassis sheet metal at the subframe mounting points. We do this by thickening the metal and distributing the load over a larger area. This kit will save time when repairing the chassis, and is also strongly recommended as a preventative maintenance item.

Photo Gallery: E46 Subframe Failure / Repair

Click here for installation instructions.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
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E36, E46 Rear Shock Tower Mount Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:3440
Part#: TSU9975100
In Stock
Sale - Save 15% $ 58.99

This product was last offered at the strikethrough price on
06-13-2026

$ 50.14 USD
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Sale - Save 15%
$ 58.99

This product was last offered at the strikethrough price on
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$ 50.14 USD
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Made in the USA A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars.

This item fits the following BMWs:
1992-1999 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3 - not for convertibles
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 - not for convertibles
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E82, E9X Front Strut Tower Reinforcement Plates (Pair)
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:2720
Part#: TSU9075STR
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
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Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
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Made in the USA Help preserve the structural integrity of your BMW E82 1-series, or E90, E91, E92, or E93 3-series with these weld-in strut tower reinforcement plates. Deformation of the front upper strut tower has been common problem, especially in race-prepped cars, cars with lowered suspensions, any car that sees track use, or BMWs driven on rough roads. The strut tower deforms from suspension bottoming out, forces generated by the spring/shock assembly, and that forced concentrated in a relatively small area on the strut tower. The strut tower will exhibit deforming by cracking (especially around the stud holes), or "mushrooming" where the tower takes on a dome-shaped top instead of being flat. By thickening the sheetmetal material of the tower, you are making it stronger and more robust to prevent deformation. While the E82 and E9x cars are newer and better made than the previous E36 and E46 cars, any suspension modification or track use will make the new cars more susceptible to this problem.

These are mounted on the underside of the strut tower and need to be welded into place.

This chassis reinforcement fits the following BMWs:
2008+ E82 BMW 128i 135i
2006+ E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335i 335xi 335i xDrive M3
2007+ E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3
2007+ E93 BMW 328i 328xi 328i xDrive 335i 335xi 335i xDrive M3
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E36 Front Subframe Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:3642
Part#: TDR3675301
In Stock
Sale - Save 37% $ 55.99

This product was last offered at the strikethrough price on
05-14-2026

$ 35.48 USD
Free Shipping on orders $49 and up
Sale - Save 37%
$ 55.99

This product was last offered at the strikethrough price on
05-14-2026

$ 35.48 USD
Free Shipping on orders $49 and up
Made in the USA The motor mount area on a subframe is one of those easily-forgotton areas that may be hiding a serious problem. The subframe on the E36 has a gusset ('ear') welded on for the motor mounts. These gussets take the stress of the motor mount as the engine torques (more upgrades = more torque = more stress). Worn motor mounts only transfer more stress to the subframe. Unfortunately, the gusset is not well-reinforced from the factory and cracks can develop along the welds and the gusset begins to collapse. A total failure of the guesset will shift your engine to the side and forward, taking out many other components along the way and leading to a very costly repair.

The next time you replace the motor mounts, oil pan gasket, checking your oil pump nut, or any other time you drop the front subframe, you should install these reinforcements. This kit comes with steel reinforcing plates that are welded to the underside of the guesset as well as plates to close off the bottom of the gusset for extra strength. Instructions included (or see the link below).

Click Here for Installation Instructions.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
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E36 Rear Sway Bar Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:3644
Part#: TSU3675001
Ships on Mar 16, 2027
Sale - Save 20% $ 76.99

This product was last offered at the strikethrough price on
06-13-2026

$ 61.59 USD
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Sale - Save 20%
$ 76.99

This product was last offered at the strikethrough price on
06-13-2026

$ 61.59 USD
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Made in the USA E36 cars with swaybar upgrades will develop cracks where the swaybar bushing mounts to the subframe. The problem becomes worse for cars that are tracked or drifted. Because the swaybar tab is un-reinforced from the factory, you can end up with flexing and twisting which will eventually weaken the welds and snap the tab from the subframe. By welding in this reinforcement you can prevent the mount from twisting. This will go a long way towards preventing a bothersome repair down the road.

Click here for installation instructions.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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BMW E30 Frame Rail Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:5901285
Part#: 043107LA01
In Stock
Sale - Save 25% $ 194.99

This product was last offered at the strikethrough price on
06-14-2026

$ 146.24 USD
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Sale - Save 25%
$ 194.99

This product was last offered at the strikethrough price on
06-14-2026

$ 146.24 USD
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BMW E30 Frame Rail Reinforcement Kit from Turner Motorsport addresses a critical weak point in the chassis to enhance the structural integrity of your BMW. Leveraging two decades of racing expertise, Turner Motorsport delivers performance parts that combine exceptional quality, value, and functionality. This reinforcement kit is designed to strengthen the frame rails of the E30, improving handling and durability for a more responsive driving experience.

  • Enhanced Structural Integrity: Reinforces the frame rails to address common weak points in the E30 chassis.
  • Improved Handling: Stiffens the underside of the vehicle for better road handling and stability.
  • Durable Construction: Built to withstand the demands of both street and track use.
  • Expert Design: Developed with insights from Turner Motorsport’s extensive racing experience.

This kit is essential for maintaining your BMW E30's performance and reliability over time.

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E46 Front Subframe Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:631
Part#: TDR4675F99
In Stock
Sale - Save 62% $ 47.99

This product was last offered at the strikethrough price on
05-14-2026

$ 18.25 USD
Free Shipping on orders $49 and up
Sale - Save 62%
$ 47.99

This product was last offered at the strikethrough price on
05-14-2026

$ 18.25 USD
Free Shipping on orders $49 and up
Made in the USA The motor mount area on a subframe is one of those easily-forgotton areas that may be hiding a serious problem. The subframe on the E46 has a gusset ('ear') welded on for the motor mounts. These gussets take the stress of the motor mount as the engine torques (more upgrades = more torque = more stress). Worn motor mounts only transfer more stress to the subframe. Unfortunately, the sheetmetal will fatigue over time even though the gusset is reinforced from the factory. Check for cracks along the welds and an uneven plane from the subframe to the gusset. A total failure of the guesset will shift your engine to the side and forward, taking out many other components along the way and leading to a very costly repair.

The next time you replace the motor mounts, oil pan gasket, checking your oil pump nut, or any other time you drop the front subframe, you should install these reinforcements. This kit comes with steel reinforcing plates that are welded to the underside of the guesset as well as plates to close off the bottom of the gusset for extra strength. Instructions included.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci M3
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X-Brace Hardware Kit - E36
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:4056342
Part#: 016865LA01-01
In Stock
Sale - Save 10% $ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 64.79 USD
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Sale - Save 10%
$ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 64.79 USD
Free Shipping on orders $49 and up

Carbon Lid - Gloss (For Strut Brace)
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:638835
Part#: 029201TMS05
In Stock
Sale - Save 10% $ 136.99

This product was last offered at the strikethrough price on
05-15-2026

$ 122.92 USD
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Sale - Save 10%
$ 136.99

This product was last offered at the strikethrough price on
05-15-2026

$ 122.92 USD
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For use with the Turner B58 Carbon Intake and 3-Point Strut Brace. If you have already purchased our Carbon Fiber B58 Intake for your G20 or G42 and want to upgrade your ride further with the rigid 3-point Strut Brace then you will need to swap out your intake lid for a new one specifically designed with precise fitment to compliment our upgraded carbon strut brace.
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E46 Rear Sway Bar Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:4200
Part#: TSU4675461
In Stock
$ 56.02 USD
Free Shipping on orders $49 and up
Made in the USA The BMW E46 3-Series chassis is one of the most rigid and well built BMW chassis to date. Even so, it still has some of the traditional BMW weak points. One of these is the rear sway bar / swaybar mounts. From chassis to chassis the problem has not been identical, but all the damage we have seen has been related to metal fatigue. The metal fatigue is due to the constant twisting and side loading of the sway bar. These forces on the sway bar will cause the mounting points to fail over time. The failure can happen faster with sway bar bind due to improper maintenance of the bushings. However, proper sway bar bushing maintenance does not totally eliminate the problem. In the case of the E46 the sheet metal for the bushing bracket does not have enough material to support the loads being transferred to the subframe. We have designed the reinforcement to strengthen and redirect the load to stronger sheet metal. Requires Welding. Does not fit M3.

Click here for installation instructions.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
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E30 M3 Front Sway Bar Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:3415
Part#: TSU3075312
In Stock
Sale - Save 73% $ 22.99

This product was last offered at the strikethrough price on
05-14-2026

$ 6.14 USD
Free Shipping on orders $49 and up
Sale - Save 73%
$ 22.99

This product was last offered at the strikethrough price on
05-14-2026

$ 6.14 USD
Free Shipping on orders $49 and up
Made in the USA Every E30 M3 that comes into our shop gets the front swaybar tab inspected. This is such a common problem but with an easy fix. If left to worsen you may be looking at an entire strut housing replacement. Fix it now with these reinforcing plates and a little welding! Not only will modified suspensions put stress on the mounts but age will reduce their strength as well. Reinforcing the swaybar mount to the strut will keep your swaybar geometry in spec and prevent a costly and ugly repair.

This item fits the following BMWs:
1987-1991 E30 BMW M3
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E36, E46, Z3 Rear Shock Mount Reinforcement (Sold Each)
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:578621
Part#: B3300044
In Stock
Sale - Save 5% $ 11.99

This product was last offered at the strikethrough price on
08-17-2026

$ 11.39 USD
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Sale - Save 5%
$ 11.99

This product was last offered at the strikethrough price on
08-17-2026

$ 11.39 USD
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This is a direct replacement for the factory BMW rear shock mount reinforcement, as equipped by BMW on Z3 models. This also fits all E36 and E46 models as well. Turner Motorsport makes our own that are thicker but these can also do a good job of preventing cracks and deformation of the rear shock towers. Priced per reinforcement plate. Order 2 to cover both rear shock towers. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This item fits the following BMWs: 1992-1999 E36 BMW 318i 318is 318ti 318ic 323is 325i 325is 328i 328is M3 (not for convertible models) 1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 (not for convertible models) 1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
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Genuine BMW - Corporate Logo
T#:60338
Part#: 33326768884
In Stock
$ 2.99 USD
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Genuine BMW Hexagon Nut With Collar - M10-10 Zns3
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,i3i12

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Genuine BMW - Corporate Logo
T#:15491
Part#: 31331094288
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
GENUINE BMW WASHER-GASKET

Genuine BMW - Corporate Logo
T#:323
Part#: 51717036781
In Stock
$ 58.99 USD
Free Shipping on orders $49 and up
Like the E36 before it, the front strut towers on the E46 are notoriously weak. Under normal driving conditions with a stock, fresh suspension it is unlikely that you will ever have a problem. But with an upgraded street or race suspension with firm springs much of the energy from pounding the road is transmitted to the thin sheet metal in the strut tower. This pounding will cause the tower to deform or even crack. Look for 'mushrooming' or deformity around the holes for the three mounting studs at the top of the strut tower. The sheetmetal around the holes should really be flat and square. Poor shocks or stiff suspensions will actually cause this sheetmetal to pop up.

These factory BMW reinforcement plates will help disperse the energy and save you from costly repairs in the future. A strut brace also helps to prevent this but these plates are designed to reinforce the strut tower from the bottom. The install over your strut mount or camber plate and simply add thickness (strength) to the strut tower. They can be sandwiched in place and do not require welding.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2001-2006 E46 BMW M3*
* - The stock M3 upper strut mount already does a good job of dispersing the loads of the suspension. These reinforcement plates will fit a stock mount for added strength but need to be trimmed to fit inside the strut tower. The are very strongly recommended for all M3s with coil over suspensions because aftermarket coil overs typically have a smaller surface area for their strut mounts.
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Genuine BMW - Corporate Logo
T#:59963
Part#: 33306787062
In Stock
$ 8.99 USD
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Ensure the secure assembly of your BMW with the Genuine BMW Combination Nut - 33306787062. This essential component is crafted to BMW's exacting standards, ensuring reliability and durability. Ideal for various BMW models, it serves as a critical fastening element in the vehicle's assembly. Upgrade to this genuine BMW part to maintain the integrity of your vehicle's components and ensure optimal performance.

  • Genuine BMW part guarantees authenticity and superior quality.
  • Precision-engineered for exact fit and functionality.
  • Enhances reliability and durability of BMW assemblies.
  • Essential for secure fastening in vehicle applications.
  • Ensures consistent performance and peace of mind.

Upgrade your BMW with the Genuine BMW Combination Nut - 33306787062 for reliable and secure assembly across various models.

Genuine BMW Combination Nut - M14X1,5-10Znniv
This item fits the following BMW Chassis:
E60 M5,E63 M6,E70 X5M,E71 X6M,E82 1M Coupe,E63,E65,E70 X5,E71 X6,E82,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,i3i12

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Genuine BMW - Corporate Logo
T#:27880
Part#: 07119906489
In Stock
$ 7.34 USD
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Genuine BMW Hexagon Screw With Flange
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93,F01,F02,F06,F10,F12,F13,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

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Genuine BMW - Corporate Logo
T#:21651
Part#: 07119900402
In Stock
$ 5.11 USD
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Genuine BMW Hex Bolt
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E36,E46,E85 Z4,E86 Z4

Genuine BMW - Corporate Logo
T#:13461
Part#: 33176760343
In Stock
5% off MSRP $ 8.75

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 8.27 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 8.75

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 8.27 USD
Free Shipping on orders $49 and up


Genuine BMW Hex Bolt With Washer - M12X100-10.9
This item fits the following BMW Chassis:
E60 M5,E63 M6,E46 M3,E82 1M Coupe,E85 Z4M,E46,E63,E65,E82,E85 Z4,E86 Z4,E90,E92,E93,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36

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Genuine BMW - Corporate Logo
T#:12732
Part#: 33306760652
In Stock
$ 7.99 USD
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GENUINE BMW HEX BOLT WITH WASHER FOR FRONT CONTROL ARM BUSHING BRACKET AND OTHER APPLICATIONS

Genuine BMW - Corporate Logo
T#:7730
Part#: 31311136465
In Stock
$ 7.99 USD
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Genuine BMW Hex Bolt With Washer - M12X20
This item fits the following BMW Chassis:
E36 M3,E85 Z4M,E34,E36,E85 Z4,E86 Z4

Genuine BMW - Corporate Logo
T#:53999
Part#: 31106769907
In Stock
$ 11.95 USD
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Genuine BMW Screw With Washer - M12X1,5X90-10.9
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93,F80 M3,F82 M4,F83

URO - Corporate Logo
T#:598534
Part#: 51718413359
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up

Discover the Turner Motorsport URO Rear Shock Mount Reinforcement Plate, individually priced for E30, E36, E46, and Z3 BMW models. This mounting plate provides essential support at the rear shock mounting point, enhancing stability and durability. Engineered by URO, renowned for quality auto parts, this reinforcement plate is designed to address and prevent issues related to the rear shock mounting, ensuring a reliable and secure connection for a variety of BMW models.

  • Individually priced for cost-effective customization.
  • Enhances support at the rear shock mounting point.
  • Designed for E30, E36, E46, and Z3 BMW models.
  • URO quality ensures durability and reliability.
  • Addresses and prevents issues related to rear shock mounting.

Upgrade your BMW's rear shock mounting system with the Turner Motorsport URO Rear Shock Mount Reinforcement Plate for increased stability and longevity.

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URO - Corporate Logo
T#:26271790
Part#: 51717036781
Back Ordered
$ 42.99 USD
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Genuine BMW - Corporate Logo
T#:13350
Part#: 31306779487
In Stock
8% off MSRP $ 8.54

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7.83 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 8.54

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7.83 USD
Free Shipping on orders $49 and up


Genuine BMW Hex Bolt With Washer - M12X1,5X55-10.9
This item fits the following BMW Chassis:
E46 M3,E38,E46,E85 Z4,E86 Z4

Genuine BMW - Corporate Logo
T#:13504
Part#: 33506784003
In Stock
$ 2.99 USD
Free Shipping on orders $49 and up


Genuine BMW Hex Nut Wiht Flange - M10-8 Zns3
This item fits the following BMW Chassis:
E82,E90,E92,E93


4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376177
Part#: 002478ECS01KT
In Stock
Sale - Save 25% $ 85.99

This product was last offered at the strikethrough price on
06-13-2026

$ 64.48 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 85.99

This product was last offered at the strikethrough price on
06-13-2026

$ 64.48 USD
Free Shipping on orders $49 and up
A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars. 
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Top-Side Rear Subframe Reinforcement Kit - E46
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:36710086
Part#: 048697LA01KT
Ships on Feb 1, 2027
Sale - Save 28% $ 415.99

This product was last offered at the strikethrough price on
06-14-2026

$ 299.99 USD
Free Shipping
Sale - Save 28%
$ 415.99

This product was last offered at the strikethrough price on
06-14-2026

$ 299.99 USD
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Rear Axle Carrier Panel (RACP) failure is a well-documented issue that plagues all BMW E46 models. Due to thin sheet metal mounting, the forces applied during cornering, acceleration, and braking create stress fractures in the carrier panel, resulting in large cracks or breaks that risk the structural integrity of your chassis. To fix this issue, many enthusiasts opt to install weld-in reinforcement plates on the underside of the RACP. While this remedies the formation of additional stress cracks and adds rigidity to failure-prone areas, it does not prevent the entire carrier panel from flexing during high-performance driving.

Our all-new Rear Subframe Reinforcement Brace is engineered to add structure to the E46's rear chassis under high-stress conditions, eliminating the common weak points in the RACP while providing the confidence you need for performance driving. Don't let chassis flex limit your car’s potential—upgrade your E46 with the Turner Motorsport Rear Subframe Reinforcement Brace today!

How It Works:

During performance driving, the Rear Axle Carrier Panel (RACP) must react the forces of longitudinal and lateral accelerations. During forward acceleration, the differential transmits torque through the subframe to the RACP, forcing the rearmost subframe mounting points downward. This downward movement flexes the carrier panel, reducing its ability to handle torque efficiently. By linking the rearmost subframe mounting points to the rear shock towers, downward flex is restricted, resulting in improved torque transfer and stability. Alternatively, high-grip cornering generates lateral acceleration (side-to-side) forces across the RACP. Similar to how a rear strut brace functions, connecting the rear shock towers helps to counteract these forces. Adding the subframe to this connection further reduces lateral loads, eliminating side-to-side flex and enhancing overall stability.

Features & Design:

Four-Point Triangulated Structure: Links the rearmost subframe mounting locations to both rear strut towers for superior load distribution. Enhanced Stability: Reduces lateral and longitudinal RACP flex during acceleration, braking, and cornering. Improved Torque Transfer: Minimizes downward flex of the RACP, ensuring efficient power delivery for enhanced driveability. High-Performance Durability: Heavy-duty steel tube construction ensures lasting support during spirited driving, track use, and for vehicles with increased power output. Blue Powdercoat Finish: Offers fantastic corrosion resistance, protection from scuffs and scratches, and a stylish appearance that is sure to complement your performance-centric E46. Underside Reinforcement Compatibility: Designed to work seamlessly alongside our underside RACP reinforcement plates (TDR4675412, T#91). Kit Includes:

Rear Subframe Brace Sedan Subframe Brace Spacers Extended-Length Drill Bit (1/4", 12" Overall Length) High-Speed Drill Bit (12.5mm, 152mm Overall Length) Drill Bit Guide Extended Subframe Bolts Zinc-Plated Steel Hex Nut (2) Installation & Support:

Need installation tips? Our team has assembled a guided start-to-finish installation tutorial, including detailed instructions on drilling and cutting your trunk floor panel for perfect fitment. Click HERE for Installation Instructions

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Genuine BMW - Corporate Logo
T#:338358
Part#: 31312489795K
In Stock
$ 63.99

This product was last offered at the strikethrough price on
08-25-2026

Starting at $ 62.96 USD
Free Shipping on orders $49 and up
Starting at $ 62.96 USD
Free Shipping on orders $49 and up
The shock towers on the E36 and Z3 are notoriously weak. Under normal driving conditions with a stock, fresh suspension it is unlikely that you will ever have a problem. But with an upgraded street or race suspension with firm springs much of the energy from pounding the road is transmitted to the thin sheet metal in the strut tower. This pounding will cause the tower to deform or even crack. Look for 'mushrooming' or deformity around the holes for the three mounting studs at the top of the strut tower. The sheetmetal around the holes should really be flat and square. Poor shocks or stiff suspensions will actually cause this sheetmetal to pop up.

These factory BMW reinforcement plates will help disperse the energy and save you from costly repairs in the future. A strut brace also helps to prevent this but these plates are designed to reinforce the strut tower from the bottom. The install over your strut mount or camber plate and simply add thickness (strength) to the strut tower. They can be sandwiched in place and do not require welding. BMW part number 31312489795

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe. Note: some Z3 models already come from the factory with these plates.
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Genuine BMW - Corporate Logo
T#:53988
Part#: 31106767496
In Stock
18% off MSRP $ 9.69

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7.93 USD
Free Shipping on orders $49 and up
18% off MSRP
$ 9.69

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7.93 USD
Free Shipping on orders $49 and up


Genuine BMW Locking Nut - M12X1,5-10 Zns3
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93,F80 M3,F82 M4,F83

Genuine BMW - Corporate Logo
T#:12736
Part#: 33326760386
In Stock
$ 9.99 USD
Free Shipping on orders $49 and up


Genuine BMW Collar Screw - M12X1,5X43 Zns3
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E36,E46,E83 X3,E85 Z4,E86 Z4,E89 Z4


Genuine BMW - Corporate Logo
T#:6401
Part#: 07119905853
In Stock
14% off MSRP $ 15.81

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 13.57 USD
Free Shipping on orders $49 and up
14% off MSRP
$ 15.81

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 13.57 USD
Free Shipping on orders $49 and up
Ensure precise fitment for your BMW with the Genuine BMW Fit Bolt - 07119905853, compatible with E36, E85, E36 M3, and E85 Z4M models. Crafted to BMW's exact specifications, this bolt guarantees optimal performance and reliability. Whether you're replacing worn-out bolts or conducting maintenance, trust Genuine BMW quality to keep your vehicle running smoothly. Invest in the Genuine BMW Fit Bolt for a seamless fit and peace of mind on the road.
  • Genuine BMW quality assurance
  • Compatible with various BMW models
  • Ensures precise fitment
  • Optimal performance and reliability
  • Essential for maintenance and repairs


Genuine BMW Fit Bolt
This item fits the following BMW Chassis:
E36 M3,E85 Z4M,E36,E85 Z4,E86 Z4

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Genuine BMW - Corporate Logo
T#:7763
Part#: 31336765744
In Stock
$ 1.99 USD
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Genuine BMW Pin - M8X18 Zns3
This item fits the following BMW Chassis:
E30 M3,E36 M3,E34 M5,E30,E34,E36,E38,E53 X5

Genuine BMW - Corporate Logo
T#:13490
Part#: 33326760361
In Stock
10% off MSRP $ 10.27

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 9.23 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 10.27

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 9.23 USD
Free Shipping on orders $49 and up


Genuine BMW Reduced-Shaft Bolt - M12X1,5X116-8.8
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E36,E46,E83 X3,E85 Z4,E86 Z4,E89 Z4

E36 Turner Motorsport Billet X-Brace Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:4056343
Part#: 016865LA01KT
In Stock
Sale - Save 5% $ 468.99

This product was last offered at the strikethrough price on
06-14-2026

$ 445.54 USD
Free Shipping
Sale - Save 5%
$ 468.99

This product was last offered at the strikethrough price on
06-14-2026

$ 445.54 USD
Free Shipping
Here at Turner Motorsport we love our classic Bmw's and are more excited than ever to focus on upgrades for the enthusiasts such as ourselves. With the prices of E36s going up and the unobtainable M3 LTW being just that, unobtainable, we decided to focus on what we have and what everyone else is able to get. It seems by now all of the E36's have been fitted with upgraded suspensions and sway bars which we have a large selection of. We found a missing part to our mission critical performance E36 project and that is the X-brace. Since the LTW is fitted with a factory X-Brace the engineers here at Turner decided to take it a few steps further. Starting with idea of improving structure and handling on the factory x-brace we thought "how could we make it better?” Before we knew it we had full 6061-T6 billet aluminum that would surpass the factory X-Brace soo much that they shouldn't even be classified on the same spectrum.

Our Turner X-Brace starts off with a solid block of 6061-T6 billet aluminum that is machined to precise tolerances, utilizing both factory mounting locations and efficiency. The brace then gets drilled and tapped to fit the modular mounting brackets perfectly before being anodized in the beautiful Turner blue. To finish off the fine details the X-Brace is assembled with zinc-plated hardware for superior corrosion resistance for time to come.
Design:

6061-T6 billet aluminum construction
Utilizes factory mounting locations with new hardware included
Direct bolt on without modification
Fits all E36 coupe and sedan models
X-Brace and brackets anodized turner blue
Assembly hardware include
Performance:

Stiffer chassis bracing between steering rack and rear portion of subframe.
Improve steering feel and handling
Oil pan protection from damage
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Genuine BMW - Corporate Logo
T#:60235
Part#: 33321136406
In Stock
1% off MSRP $ 22.29

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.09 USD
Free Shipping on orders $49 and up
1% off MSRP
$ 22.29

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.09 USD
Free Shipping on orders $49 and up


Genuine BMW Hex Bolt - M12X1,5X90
This item fits the following BMW Chassis:
E30 M3,E30,E34,E36

ECS - Corporate Logo
T#:376176
Part#: 002478ECS02KT
In Stock
Sale - Save 25% $ 95.98

This product was last offered at the strikethrough price on
06-13-2026

$ 71.98 USD
Free Shipping
Sale - Save 25%
$ 95.98

This product was last offered at the strikethrough price on
06-13-2026

$ 71.98 USD
Free Shipping
The upper rear shock bolts to the sheetmetal in the folding top well on convertible models. As the mileage goes up more and more stress is put on this sheetmetal and it can actually tear away from the rest of the chassis. Look for lttle cracks originating from the mouning holes. This reinforcement plate helps spread the shock loads around the sheetmetal and reduce stress in localized areas. Price is for the pair.
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Suspension Reinforcement Kit E36
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777304
Part#: 002478ECS01-KT
In Stock
$ 122.99 USD
Free Shipping on orders $49 and up
If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The ECS rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The ECS Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.
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Genuine BMW - Corporate Logo
T#:7779
Part#: 31351127202
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up


Genuine BMW Support Shackle
This item fits the following BMW Chassis:
E30 M3,E30


Heavy Duty Rear Sway Bar Bracket Upgrade - E30
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:9222692
Part#: 016965LA
In Stock
Sale - Save 25% $ 118.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 89.24 USD
Free Shipping
Sale - Save 25%
$ 118.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 89.24 USD
Free Shipping
A major upgrade over the weak stamped steel factory sway bar brackets. These are critical for those running larger, aftermarket sway bars. Includes polyurethane bushings.
Genuine BMW - Corporate Logo
T#:59645
Part#: 33176760336
In Stock
7% off MSRP $ 25.16

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.49 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 25.16

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 23.49 USD
Free Shipping on orders $49 and up
Genuine BMW HEX BOLT WITH WASHER

Genuine BMW - Corporate Logo
T#:179943
Part#: 33326863853
In Stock
3% off MSRP $ 32.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 31.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 32.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 31.99 USD
Free Shipping on orders $49 and up


Genuine BMW Eccentric Bolt - M12X1,5X82-10.9
This item fits the following BMW Chassis:
E36 M3,E46 M3,E36,E46

Suspension Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416754
Part#: 51717036781TMSKT
Back Ordered
$ 234.85 USD
Free Shipping
$ 234.85 USD
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Includes RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.
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Genuine BMW - Corporate Logo
T#:16167
Part#: 51717895250
Ships in 1 day
2% off MSRP $ 123.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 120.99 USD
Free Shipping
2% off MSRP
$ 123.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 120.99 USD
Free Shipping

Connects the strut brace bar to the strut tower.

 

GENUINE BMW BRACKET RIGHT


Genuine BMW - Corporate Logo
T#:115813
Part#: 51618045860
In Stock
9% off MSRP $ 136.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Limited Qty Sale
Free Shipping
9% off MSRP
$ 136.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Limited Qty Sale
Free Shipping

Enhance your BMW's performance and stability with the Genuine BMW Strut Tower Brace Center Mount for E90 M3, E92 M3, E82 1 M Coupe, and E93 M3. Crafted to BMW's exact specifications, this authentic center mount ensures optimal fit and structural reinforcement for your BMW. Improving handling and reducing body flex, it enhances overall driving dynamics and cornering stability. Whether you're tackling tight corners or enjoying spirited driving, trust Genuine BMW parts to elevate your BMW's performance and driving experience.

  • Genuine BMW strut tower brace center mount for superior quality
  • Crafted to BMW's exact specifications for perfect fit
  • Improves handling and reduces body flex
  • Enhances driving dynamics and cornering stability
  • Compatible with E90 M3, E92 M3, E82 1 M Coupe, and E93 M3 models


Genuine BMW Mount For Strut Brace -
This item fits the following BMW Chassis:
E90,E92,E93

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Lemforder - Corporate Logo
T#:592315
Part#: 31336788776
In Stock
$ 98.99

This product was last offered at the strikethrough price on
07-06-2026

$ 91.99 USD
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$ 91.99 USD
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Supports the front spring on the strut
Genuine BMW - Corporate Logo
T#:194819
Part#: 31102284631
In Stock
9% off MSRP $ 332.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 303.99 USD
Limited Qty Sale
9% off MSRP
$ 332.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 303.99 USD
Limited Qty Sale


Genuine BMW Structural Reinforcement Panel -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83



Suspension Reinforcement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677561
Part#: 51717036781-KT
Back Ordered
$ 234.85 USD
Free Shipping on orders $49 and up
If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The ECS rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The ECS Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.
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MMX Performance - Corporate Logo
T#:55713525
Part#: MMR13-1000
In Stock
New Item
$ 295.00 USD
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$ 295.00 USD
Free Shipping
The MMX Performance Underbody Chassis Brace is engineered specifically for the F8x platform to eliminate the unwanted flex that plagues the factory mid-section. On the track or your favorite backroad, flex alters your alignment mid-corner, reducing tire contact patch.
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