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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E46 M3 S54 (1999-2005)

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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Header Hardware and Gasket Kit - E46 M3

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T#:48

Part#: E46M3HEADERKIT

Ships in 1-2 days

$ 169.99

This product was last offered at the strikethrough price on
03-04-2026

$ 166.99 USD

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$ 166.99 USD

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Includes longer studs for aftermarket headers! If you're swapping in new headers on your E46 M3 this kit of gaskets and hardware is the perfect finishing touch! Everyone knows that headers are one of the best performance gains you can do on the E46 M3 and we sell a lot of them. But new gaskets are required if you want a leak-free install and to avoid re-doing the work. This kit fits all E46 M3 (LHD only). Includes: 6 x 11627830667, manifold to head gaskets 18 x 11721437202, exhaust manifold nut 18 x 11121744057, exhaust manifold stud 2 x 11627830668, manifold to section 1 crush rings 1 x 11727505259, air pump valve gasket This item fits the following BMWs: 2001-2006 E46 BMW M3

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Cylinder Head To Exhaust Manifold Stud & Nut Kit - E46 M3

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T#:636980

Part#: 07129900298KT

Ships in 2 Business Days

$ 103.99

This product was last offered at the strikethrough price on
03-04-2026

$ 96.99 USD

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$ 96.99 USD

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This convenient kit includes all the hardware you need to replace your old, rusted (or broken) exhaust manifold studs on your S54 engine's head.

Exhaust Gaskets and Hanger Package for E46 M3

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T#:338742

Part#: E46M3EXHGASKETS

In Stock

Starting at $ 285.04 USD

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Starting at $ 285.04 USD

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A Do-It-Yourself exhaust install can be hard enough. But to stop in the middle of it to run to the dealer for gaskets, hangers, or special hardware is a major inconvenience. Don't be left taking the bus to the dealership on the hunt for parts. Get all of the parts you may need before the job begins! And with mileage we can almost gurantee that any section you remove will need to have new gaskets. Some of the gaskets are crushed to ensure a tight seal; other gaskets become stuck to their flanges. This set of hangers and gaskets for the 2001-2006 E46 M3 covers all of the sections of the exhaust, from the headers to the muffler.

The exhaust on the E46 M3 is broken up into sections -
headers - gaskets at the cylinder head and at the outlet to section 1, plus an air pump gasket
section 1 - crush gasket rings on the inlet and flange gaskets at the outlet to section 2
section 2 - flange gaskets at the inlet and steel exhaust rings at the outlet to the muffler
muffler - steel exhaust rings on the inlet with special square-shouldered nuts (included with hanger/gasket kit)

This package also includes 3 new muffler hangers and the 2 hangers in the center of the exhaust (mounted on section 1).

We also offer most of the exhaust hardware you may need -
Torx bolts and nuts for the header-section 1 connection
copper nuts for the section 1-section 2 connection (M8x30 bolts can be re-used)

Applications:
2001-2006 E46 M3 coupe, convertible

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Rein Copper Exhaust Lock Nut

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

T#:348775

Part#: 11621711954

In Stock

$ 1.95 USD

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$ 1.95 USD

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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 Exhaust Manifold Nut

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

T#:363427

Part#: 11721437202

In Stock

$ 2.03 USD

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$ 2.03 USD

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This metal nut mounts to the back of the flange on the exhaust manifold towards the engine.

Rein Self-Locking Nut

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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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Turner Motorsport Double Wall Slash Cut Exhaust Tips - 2.75 Inlet - 3...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55857771

Part#: 026732TMS03KTKT2

In Stock

$ 279.99 USD

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$ 279.99 USD

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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E46 M3 S54 (1999-2005)

Sub-Categories

Header Hardware and Gasket Kit - E46 M3

Cylinder Head To Exhaust Manifold Stud & Nut Kit - E46 M3

Exhaust Gaskets and Hanger Package for E46 M3

Rein Copper Exhaust Lock Nut

Rein Exhaust Manifold Nut

Rein Self-Locking Nut

Turner Motorsport Double Wall Slash Cut Exhaust Tips - 2.75 Inlet - 3...

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