BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E34 M5 S38 3.5L

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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Universal Catalytic Converter - 2.25"
Universal Catalytic Converter - 2.25"
Emico - Corporate Logo
T#:23152011
Part#: 602205
In Stock
$ 97.99 USD
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$ 97.99 USD
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Enhance your BMW's performance with this OBD II compliant universal fit catalytic converter. This converter, devoid of O2 sensor bungs, ensures compatibility with various vehicles. However, please note that it's not a 50-state legal catalytic converter. For California residents, it's recommended to verify local laws pertaining to aftermarket catalytic converters.
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Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"
Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580382
Part#: B8800066
Ships in 1 Business Day
Sale - Save 25% $ 49.99

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

$ 37.49 USD
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Sale - Save 25%
$ 49.99

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

$ 37.49 USD
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Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. Fits all Oxygen sensors with 7/8in (22mm) hex.
3 Pc. OXygen Sensor Wrench Set
3 Pc. OXygen Sensor Wrench Set
CTA Tools - Corporate Logo
T#:2393414
Part#: CTA2073
In Stock
$ 50.01 USD
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$ 50.01 USD
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Get the complete set.
Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6"
Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6" ...
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580383
Part#: B8800067
Ships in 1 Business Day
Sale - Save 20% $ 29.99

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

$ 23.99 USD
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Sale - Save 20%
$ 29.99

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

$ 23.99 USD
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This 1/2" Drive, 7/8" x 6" Extra Long O2 sensor tool is used to remove difficult to reach oxygen sensors.
Bosch Oxygen Sensor - Front Position - E24, E32, E34
Bosch Oxygen Sensor - Front Position - E24, E32, E34
Bosch - Corporate Logo
T#:3000
Part#: 11781720537
Ships in 1 Business Day
$ 142.99

This product was last offered at the strikethrough price on
05-07-2026

$ 125.99 USD
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$ 125.99 USD
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This direct fit Bosch oxygen sensor plugs directly into your factory connector. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E24 E32 E34. Bosch # 13 052.

This item fits the following BMWs:
1988-1989 E24 BMW 635csi
1989-1993 E34 BMW 535i M5
1988-1992 E32 BMW 735i 735il
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Oxygen Sensor Thread Chaser
Oxygen Sensor Thread Chaser
CTA Tools - Corporate Logo
T#:3729697
Part#: CTA2068
In Stock
$ 11.41 USD
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$ 11.41 USD
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Remove rust and dirt for easy installation with this tool
Thin Wall Oxygen Sensor Socket
Thin Wall Oxygen Sensor Socket
CTA Tools - Corporate Logo
T#:640932
Part#: CTA2064
In Stock
$ 17.85 USD
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$ 17.85 USD
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Out of space? Use this thin wall socket.
Rein Self-Locking Nut
Rein Self-Locking Nut
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:12678
Part#: 18301737774
In Stock
$ 4.99 USD
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$ 4.99 USD
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Be sure to install new hardware with your new parts to ensure proper tightening and fitment. This is an M10 self-locking nut, used in various locations in the vehicle. Be sure to check for proper size and application prior to ordering.
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Gasket Ring - Priced Each (42mm)
Gasket Ring - Priced Each (42mm)
HJS - Corporate Logo
T#:590224
Part#: 18111245489
In Stock
$ 4.44

This product was last offered at the strikethrough price on
05-04-2026

$ 4.42 USD
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$ 4.42 USD
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Bav Auto Exhaust Doughnut Stretcher
Bav Auto Exhaust Doughnut Stretcher
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580373
Part#: B8800051
In Stock
Sale - Save 25% $ 20.99

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

$ 15.74 USD
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Sale - Save 25%
$ 20.99

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

$ 15.74 USD
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This tool is not vehicle specific and is a universal tool that may or may not work on all applications. This exhaust doughnut stretcher features an offset J-hook to grab onto the rubber rings used to mount most BMW exhaust systems. Features a large coated handle for a comfortable grip.
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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
XForce - Corporate Logo
T#:28570834
Part#: VKSB01-ECU-MODUL
Ships in 1 Business Day
$ 399.00 USD
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$ 399.00 USD
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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module is the ideal choice for BMW owners seeking to enhance their vehicle's performance. This innovative module seamlessly integrates with the Varex muffler system, allowing for precise control over exhaust sound and performance. With its easy installation process and versatile functionality, it provides an elevated driving experience for BMW enthusiasts.
  • Seamless integration with Varex muffler system
  • Precise control over exhaust sound and performance
  • Easy installation process
  • Versatile functionality for enhanced driving experience
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Rein Hex Nut - E24, E28, E30, E34
Rein Hex Nut - E24, E28, E30, E34
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:7031
Part#: 11621304755
Ships in 3 Business Days
$ 2.99 USD
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$ 2.99 USD
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Replacement nut for exhaust manifold.
Genuine BMW Exhaust Gasket Ring - E23 E24 E28 E30 E34
Genuine BMW Exhaust Gasket Ring - E23 E24 E28 E30 E34
HJS - Corporate Logo
T#:7487
Part#: 18111723541
Ships in 1-2 days
$ 5.99

This product was last offered at the strikethrough price on
05-07-2026

$ 4.99 USD
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$ 4.99 USD
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This 45mm exhaust gasket ring seals the connection point between two exhaust pipes.
HJS Exhaust Gasket Ring - E24, E28, E32, E34
HJS Exhaust Gasket Ring - E24, E28, E32, E34
HJS - Corporate Logo
T#:19551
Part#: 18111175311
Ships in 3 Business Days
$ 7.99 USD
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$ 7.99 USD
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GASKET RING 18111175311 Manufactured by CRP

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This item fits the following BMWs:
BMW 5 Series - 525i, 525i Wagon

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Offset Oxygen Sensor Wrench- Extended
Offset Oxygen Sensor Wrench- Extended
CTA Tools - Corporate Logo
T#:640929
Part#: CTA2065
Back Ordered
$ 19.99 USD
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$ 19.99 USD
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Extra length is needed sometimes

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