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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 8 Series E31 (1991-1997)

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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60mm Exhaust Sleeve With Dual Clamps - Priced Each

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:38351607

Part#: 1K0253141N

In Stock

$ 19.99 USD

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$ 19.99 USD

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Rein Self-Locking Nut

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

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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Rein Exhaust Gasket - E31, E34, E36, E38, Z3

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:348948

Part#: 18301716888

In Stock

$ 10.99 USD

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$ 10.99 USD

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Gasket between header and catalytic converter

BMW Xforce Smartbox Varex Muffler ECU Upgrade Module

T#:28570834

Part#: VKSB01-ECU-MODUL

Ships in 1 Business Day

Sale - Save 10% $ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD

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Qty

Sale - Save 10%

$ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD

Add to Wish List

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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Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...

2 Required per model, located before the catalyst

We Price Match - Give Us A Call or Chat!

T#:5944214

Part#: 11781247406

Special Order: No Guaranteed ETA

$ 57.99 USD

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$ 57.99 USD

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This direct-fit Meyle oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing is required. A new oxygen sensor can improve driveability and lengthen engine life. This is the pre-catalytic converter oxygen sensor

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