BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 5 Series E39 (1996-2003)

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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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Rein Exhaust Manifold Nut
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:363427
Part#: 11721437202
Back Ordered
$ 2.03 USD
Free Shipping on orders $49 and up
This metal nut mounts to the back of the flange on the exhaust manifold towards the engine.
Rein Exhaust Gasket - E31, E34, E36, E38, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:348948
Part#: 18301716888
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
Gasket between header and catalytic converter
Rein Copper Exhaust Lock Nut
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:348775
Part#: 11621711954
In Stock
$ 1.95 USD
Free Shipping on orders $49 and up

Flange copper nut - priced each

Rein Copper Exhaust Lock Nut is an essential component for anyone looking to maintain or upgrade their vehicle’s exhaust system. This high-quality copper nut ensures a secure and durable fastening, preventing exhaust leaks and ensuring optimal performance. Designed for heat resistance and durability, the Rein Copper Exhaust Lock Nut is perfect for high-temperature environments, making it ideal for both daily drivers and high-performance vehicles.

Turner Motorsport offers this premium copper exhaust lock nut, which is resistant to corrosion and rust, providing long-lasting reliability. Whether you're a professional mechanic or a DIY enthusiast, this copper lock nut is easy to install and ensures the proper fit and function of your exhaust system.

  • Made from high-quality copper for maximum durability
  • Heat and corrosion-resistant to withstand extreme temperatures
  • Perfect for maintaining or upgrading your exhaust system
  • Ensures a secure, leak-free connection
  • Available at Turner Motorsport for easy purchase
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Rein Downpipe Gasket - E39, E46, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:13207
Part#: 18301440183
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
FLAT GASKET:188520

Rein Self-Locking Nut
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:12678
Part#: 18301737774
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
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 - Corporate Logo
T#:34214751
Part#: 18207546579
In Stock
$ 4.88 USD
Free Shipping on orders $49 and up

The Rein Exhaust Joint Sleeve Bushing 8mm EXB0045 is a premium-quality part designed to ensure a secure and reliable connection in BMW exhaust systems. Manufactured by Rein, this 8mm diameter sleeve bushing is built to withstand high heat and vibration, providing long-lasting durability and maintaining the efficiency of your BMW’s exhaust flow. Perfect for replacing worn-out components, this bushing enhances exhaust system stability and prevents leaks, ensuring your vehicle runs smoothly.

Available through Turner Motorsport, the Rein Exhaust Joint Sleeve Bushing 8mm EXB0045 is designed to meet or exceed OEM specifications, making it ideal for BMW owners looking to restore their vehicle’s performance. Whether you're a professional mechanic or a DIY enthusiast, this exhaust bushing is easy to install and helps maintain optimal performance in high-stress conditions.

Benefits:

  • Precision fitment: Specifically engineered for an 8mm diameter, ensuring a seamless fit for BMW exhaust systems.
  • Durable materials: Made from high-quality materials that resist heat, pressure, and wear over time.
  • Leak-proof seal: Helps prevent exhaust leaks, maintaining efficient exhaust flow and reducing noise.
  • Vibration dampening: Reduces vibrations and noise for a smoother, quieter driving experience.
  • Available at Turner Motorsport: Trusted source for high-quality BMW parts and accessories.

Upgrade your BMW’s exhaust system with the Rein Exhaust Joint Sleeve Bushing 8mm EXB0045, ensuring a durable, leak-free connection that enhances overall performance.

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Meyle Oxygen Sensor - Post-Cat - E46 E39 X3 X5 Z3 Z4
For vehicles with production date from 09/1998
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5944219
Part#: 11781433940
Ships on Oct 5, 2026
$ 78.99 USD
Free Shipping on orders $49 and up
$ 78.99 USD
Free Shipping on orders $49 and up
This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. ​ This item fits the following BMWs: 1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi 2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine 1999-2003 E39 BMW 528i 525i 530i 2004-2006 E83 BMW X3 2.5 - Bank 1 Only 2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only 2000-2006 E53 BMW X5 3.0i 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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Rein 63.5mm ID Exhaust Clamp - E39, E65, E66
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:48302
Part#: 18307536425
Back Ordered
$ 21.99

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

$ 20.99 USD
Free Shipping on orders $49 and up
$ 20.99 USD
Free Shipping on orders $49 and up


BMW Clamping Bush - D=63,5
This item fits the following BMW Chassis:
E39 M5,E39,E65,E90,E92,E93

Fits BMW Engines including:
M62,N51,N51,N52,N52N,N54,N73,S62,W11

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Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...
For vehicles with production date up to 09/1998
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5944214
Part#: 11781247406
Back Ordered
$ 57.99 USD
Free Shipping on orders $49 and up
$ 57.99 USD
Free Shipping on orders $49 and up
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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