BMW Suspension Parts for BMW E46 M3 S54 (1999-2005)

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Your BMW's handling is determined by the capabilities and age of your suspension components. Our selected aftermarket performance suspension like coilovers, lowering springs, cup kits, and dampers can improve the handling of your BMW dramatically. With those upgrades comes the needs for proper adjustment; our recommended supporting modifications comes stiffer sway bars, bushings, and adjustable camber/caster plates, to name a few found on this page. Completely build your suspension for the most competitive BMW driving experience, achieve your perfect look, or simply replace your worn suspension with our recommended parts.

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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
Free Shipping on orders $49 and up
Sale - Save 15%
$ 58.99

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

$ 50.14 USD
Free Shipping on orders $49 and up
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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Turner Motorsport - Corporate Logo
T#:338951
Part#: JRDRP
Back Ordered
Starting at $ 39.99 USD
Free Shipping on orders $49 and up
Starting at $ 39.99 USD
Free Shipping on orders $49 and up
The rear mounts in BMW 3 series fail, no matter what year from 1983 to present, that is a weak point of the suspension. Here's the solution. The 3 Series "Repair Shop" Rear Shock Mounts carry a lifetime warranty and will last as long as you own your car. Expect the same comfortable ride you have with factory mounts. These are an inexpensive alternative to expensive factory mounts.

Make this complete by adding the mount gasket and nuts (add the option below).
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Turner Motorsport - Corporate Logo
T#:304089
Part#: TSU4680SPA
In Stock
Sale - Save 20% $ 116.38

This product was last offered at the strikethrough price on
05-03-2026

$ 93.10 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 116.38

This product was last offered at the strikethrough price on
05-03-2026

$ 93.10 USD
Free Shipping on orders $49 and up

Turner Motorsport - Corporate Logo
T#:387579
Part#: 017803TMS03A
In Stock
Sale - Save 38% $ 33.99

This product was last offered at the strikethrough price on
05-03-2026

$ 20.97 USD
Free Shipping on orders $49 and up
Sale - Save 38%
$ 33.99

This product was last offered at the strikethrough price on
05-03-2026

$ 20.97 USD
Free Shipping on orders $49 and up

This is a NEW replacement polyurethane bushing used in our E46 M3 Front Street Camber Plates. This is a custom-manufactured part for Turner Motorsport, made with our own specifications. Replacement is straight-forward but does require the camber plates to be removed from the car. Price is for each bushing.

This item fits the following BMWs:
2001-2006 E46 BMW M3 with Front Turner Street Camber Plate

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Turner Motorsport - Corporate Logo
T#:599632
Part#: RERS3
In Stock
Sale - Save 43% $ 27.99

This product was last offered at the strikethrough price on
03-27-2026

$ 16.00 USD
Free Shipping on orders $49 and up
Sale - Save 43%
$ 27.99

This product was last offered at the strikethrough price on
03-27-2026

$ 16.00 USD
Free Shipping on orders $49 and up
Extend the life of your heim joints with this flexible rubber protective boot. Designed to fit 14mm–18mm spherical bearings and rod ends, it shields critical components from dirt, moisture, and road debris. Keeping contaminants out helps ensure consistent performance and reduces wear over time.
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Turner Motorsport - Corporate Logo
T#:631
Part#: TDR4675F99
In Stock
Sale - Save 77% $ 79.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.25 USD
Free Shipping on orders $49 and up
Sale - Save 77%
$ 79.99

This product was last offered at the strikethrough price on
05-03-2026

$ 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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