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

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

Performance Valved Catback Exhaust - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:20122585
Part#: 023410LA09
In Stock
Sale - Save 13% $ 1,310.99

This product was last offered at the strikethrough price on
03-18-2026

Starting at $ 1,136.62 USD
Free Shipping
Sale - Save 13%
$ 1,310.99

This product was last offered at the strikethrough price on
03-18-2026

Starting at $ 1,136.62 USD
Free Shipping

The wait is finally over, if you have been driving your E46 M3 around with a stock exhaust or are looking for your final exhaust setup we have you covered! Welcome to the world of ingenious designed exhausts that can meet your every driving need. Our new E46 M3 catback Exhaust is a stunning example of both engineering and art with sounds to please your ears and a sight to remember. Our catback is a lightweight and free-flowing exhaust that features two independent valved mufflers and an ingenious mounting system that is a pleasure to install and easy to perfectly dial in the exhaust fitment. Weighing 19lbs or less than your factory exhaust, featuring mufflers specifically designed for the S54 this exhaust is able to provide two completely different driving experiences.

With the exhaust valves closed the refined driving experience will blow your mind; while daily driving with closed valves there is a perfect bump in volume over the factory exhaust which allows you to hear and feel your rpms with a smooth exhaust note that shows your true passion for your iconic vehicle. Now on to the real action, what you have always wanted but never wanted to commit to. Some days you just want to put the pedal to the floor with unlimited amounts of exhaust volume with your high revving 6 cylinder. Here is your opportunity to unleash the pure sound of your S54 while having the choice to change back to a respectable volume exhaust. With the valves open this exhaust is an absolute mental, untamable racecar. Starting off from a stop with the valves open there is a significant increase in volume over the valves closed. When entering in to the 2000 rpm range you begin to experience the slightest taste of how satisfying the exhaust is going to sound. As you approach 4,000 rpms and higher you now have started to open up the can of worms, you can feel the free flowing path of the exhaust with limited to no resistance, far superior to the factory exhaust. Anything after 6500 rpms is an absolute statement of exhaust. Over 6500 rpm is a sonorous note that lives rent free in the enthusiasts mind that can make a believer out of anyone who doubted the capable E46 M3. Once you are done having your fun and have experienced your S54 more than you ever have all you do is make one button click on your valve controller and you are back to high class and refinement. Truly the best of both worlds and a school girl giggling experience anytime you want.

Features and Benefits:

19lbs or more weight savings from your factory exhaust
Retains factory emissions
Compatible with factory headers/front sections
Compatible with aftermarket headers/front sections that mate up to the factory rear section
Utilizes factory exhaust hangers
Adjustable fabricated sheet metal muffler brackets
Integrated x-pipe for improved exhaust note
Mandrel-bent dual 2.5" 304SS pipe
High flow dual valved, stainless steel mufflers
Vacuum actuated valves
Accuseal slip fit joints
All muffler exits are used for valves open and closed
2.5” Muffler exits for a variety of 3.5" tip options
Kit Contents:

E46 M3 mid section with integrated X-Pipe
Dual Turner S54 valved mufflers
Dual valve actuators and 2 remote key fobs
Exhaust Gaskets and Hardware
New center exhaust hangers
Optional Turner 3.5" Brushed or Chrome tips
Optional muffler hanger removal pliers

Show More Show Less
Universal Stainless Steel Straight Pipe - 2.5" OD - 24" Length ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587358
Part#: TMS24SPKT
In Stock
Sale - Save 25% $ 42.99

This product was last offered at the strikethrough price on
06-14-2026

$ 32.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 42.99

This product was last offered at the strikethrough price on
06-14-2026

$ 32.24 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 2.50" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability Overall Length (OAL) is approximately 24.00"
Show More Show Less
Universal Stainless Steel 90 Degree Pipe - 3.0" OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587361
Part#: TMS3090PKT
In Stock
Sale - Save 10% $ 40.99

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

$ 36.89 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 40.99

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

$ 36.89 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 3.0" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability Minimum Leg Length - 8.25" Bend Radius - 4.75" @ 90° angle
Show More Show Less

Universal Exhaust Pipe Reducer - 3" OD To 60mm ID
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587351
Part#: TMS3060ER2KT
In Stock
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" OD (Butt) To 60mm ID (slip) connections 1.5mm (.060") wall thickness tubing for durability Length on 60mm ID side - 2.25" Length on 3.0" OD side - 3.50"
Show More Show Less

Universal Stainless Steel J-Pipe - 2.5" OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587362
Part#: TMS25JPKT
In Stock
Sale - Save 5% $ 46.99

This product was last offered at the strikethrough price on
06-14-2026

$ 44.64 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 46.99

This product was last offered at the strikethrough price on
06-14-2026

$ 44.64 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 2.5" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability U-Bend Centerline Radius - 3.50" @ 180° angle Leg Length "A" - 5.0" Leg Length "B" - 5.50" Leg Length "C" - 7.0"
Show More Show Less
Stainless Steel V-Band Clamp - 2.5"
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587344
Part#: TMS25VBKT
In Stock
Sale - Save 25% $ 49.99

This product was last offered at the strikethrough price on
06-14-2026

$ 37.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 49.99

This product was last offered at the strikethrough price on
06-14-2026

$ 37.49 USD
Free Shipping on orders $49 and up
Ensure you are building your custom exhaust system with only the best! This V-Band Clamp is made completely of T304 stainless steel for high strength and corrosion resistance and comes with zinc-coated hardware. PART DESIGN Weld Rings are made from T304 Stainless Steel for corrosion resistance Weld Rings are 2.5" inside diameter (ID) to slip over a 2.5" OD tube Weld Rings feature a unique "centering ring" on the ID to aid in the alignment of assembly V-Band clamp is T304 Stainless Steel Securing hardware is Zinc-coated steel with high-temp poly. lock nut INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
Show More Show Less

Universal Exhaust Pipe Reducer - 3" ID To 60mm OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587350
Part#: TMS3060ER1KT
In Stock
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" ID (Slip) To 60mm OD (Butt) connections 1.5mm (.060") wall thickness tubing for durability Length on 60mm OD side - 2.25" Length on 3.0" ID side - 3.50"
Show More Show Less
Universal Stainless Steel J-Pipe - 3.0" OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587363
Part#: TMS30JPKT
Ships on Feb 8, 2027
Sale - Save 5% $ 53.99

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

$ 51.29 USD
Sale - Save 5%
$ 53.99

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

$ 51.29 USD
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 3.0" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability U-Bend Centerline Radius - 5.0" @ 180° angle Leg Length "A" - 5.0" Leg Length "B" - 9.50" Leg Length "C" - 10.5"
Show More Show Less

Universal Stainless Steel Straight Pipe - 3.0" OD - 24" Length ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587359
Part#: TMS30SPKT
Ships on Feb 8, 2027
Sale - Save 25% $ 47.99

This product was last offered at the strikethrough price on
06-14-2026

$ 35.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 47.99

This product was last offered at the strikethrough price on
06-14-2026

$ 35.99 USD
Free Shipping on orders $49 and up
Rust can turn your exhaust system into useless scrap metal in a short period of time if you don't start with the right materials. Ensure your custom exhaust lasts as long as possible with this T304 stainless steel universal exhaust pipe! PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features an attractive brushed finish 3.0" outside diameter (OD) 1.5mm (.060") wall thickness tubing for durability Overall Length (OAL) is approximately 24.00"
Show More Show Less

Universal Exhaust Pipe Reducer - 3" ID To 65mm OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587349
Part#: TMS3065ERKT
In Stock
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD
Free Shipping on orders $49 and up
Connect your differently sized exhaust pipes quick and easy with this T304 stainless steel exhaust pipe reducer. PART DESIGN Made from T304 Stainless Steel for corrosion resistance and features a raw finish 3.0" ID (Slip fit) X 65mm OD (Butt) connections 1.5mm (.060") wall thickness tubing for durability Length on 65mm OD side - 2.25" Length on 3.0" ID side - 3.50"
Show More Show Less
Stainless Steel V-Band Clamp - 3.0"
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587341
Part#: TMS30VBKT
In Stock
Sale - Save 25% $ 54.99

This product was last offered at the strikethrough price on
06-14-2026

$ 41.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 54.99

This product was last offered at the strikethrough price on
06-14-2026

$ 41.24 USD
Free Shipping on orders $49 and up
Ensure you are building your custom exhaust system with only the best! This V-Band Clamp is made completely of T304 stainless steel for high strength and corrosion resistance and comes with zinc-coated hardware. PART DESIGN Weld Rings are made from T304 Stainless Steel for corrosion resistance Weld Rings are 3.0" inside diameter (ID) to slip over a 3.0" OD tube Weld Rings feature a unique "centering ring" on the ID to aid in the alignment of assembly V-Band clamp is T304 Stainless Steel Securing hardware is Zinc-coated steel with high-temp poly. lock nut ​INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
Show More Show Less
Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:587345
Part#: TMS02BUNGKT
In Stock
Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD
Free Shipping on orders $49 and up
Finish your custom exhaust with this T304 stainless steel weld-in oxygen sensor bung. PART DESIGN CNC-cut from T304 Stainless Steel for corrosion resistance Radiused to match 2.50"-3.00" OD tubing for ease of welding Threaded for M18x1.5mm RH oxygen sensors INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
Show More Show Less