BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW X5 M S63 4.4L

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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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HJS - Corporate Logo
T#:396285
Part#: 11657620508
In Stock
$ 24.99 USD
Free Shipping on orders $49 and up

BMW N54 N55 N63 S63 HJS V-Band Exhaust Clamp - Priced Each is designed for superior performance and reliability in exhaust system maintenance and upgrades. Engineered by Turner Motorsport, this high-quality clamp ensures a secure and leak-free connection in your BMW's exhaust system.

  • Durable Construction: Made from premium materials to withstand high temperatures and harsh conditions, ensuring long-lasting performance.
  • Precision Fit: Designed to fit perfectly with BMW N54, N55, N63, and S63 engines, offering a secure and reliable seal.
  • Improved Exhaust Efficiency: Prevents leaks and maintains optimal exhaust flow, contributing to better engine performance and efficiency.
  • Easy Installation: The V-band design allows for quick and easy installation or removal, simplifying exhaust system maintenance.
  • Versatile Use: Ideal for both performance upgrades and routine repairs, making it a valuable addition to any BMW enthusiast's toolkit.
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HJS - Corporate Logo
T#:2423575
Part#: 1K0253141N
Ships in 1-2 days
47% off MSRP $ 34.20

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 17.99 USD
Free Shipping on orders $49 and up
47% off MSRP
$ 34.20

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 17.99 USD
Free Shipping on orders $49 and up
Commonly found between mid-pipe and front muffler. 60x95mm
VRSF 4" Turbo to Downpipe Clamp - BMW
We Price Match - Give Us A Call or Chat!
VRSF - Corporate Logo
T#:2839845
Part#: 505040
Ships in 6 Business Days
$ 18.99 USD
Free Shipping on orders $49 and up
4" Turbo to Downpipe Clamp for 4" Downpipes

HJS - Corporate Logo
T#:37622243
Part#: 18307560781
Ships in 2 Business Days
$ 47.99 USD
Free Shipping on orders $49 and up

Dual clamp pipe connector joins exhaust pipes without welding. Split, compressible design clamps tightly around joined pipes for a leak-free fit. Includes hardware.

76.2mm (3.00 inch) diameter.

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Evolution Racewerks - Corporate Logo
T#:6061578
Part#: BM-EXH026PCAT
Ships in 8 Business Days
$ 2,495.00 USD
Free Shipping on orders $49 and up
Restrictions in the exhaust system rob horsepower and torque, especially on turbocharged cars. Thus, removing as many exhaust flow restrictions as possible will increase horsepower and torque significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. Evolution Racewerks use a 200 cell metallic core for their Sports Series High Flow Catted Downpipes. By having fewer cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through them more easily. Therefore, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic, like the factory, is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts. The Evolution Racewerks catted downpipe is constructed out of grade 304 stainless steel and utilizes mandrel bent 3" piping. They are 100% TIG welded by in-house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a V-Band flange which has been duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. Evolution's downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsoever with any exhaust designed to bolt up to stock downpipes. The downpipes will come by default with a brushed finish. Features & Specifications: High Flow 200 cell metallic catalytic converter used Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Mandrel Bent 3" piping. Smooth transition to the exhaust system - Better throttle response and faster turbo spool-up times. 100% Stainless Steel Construction 100% TIG welded for better quality welds Precision CNC machined turbocharger V-Band flange. Retains factory slip-on style connection. Compatible with the factory or aftermarket exhaust systems. Track tested durability. Includes all hardware for complete installation. Limited Lifetime Warranty. CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution-controlled vehicles upon public roads/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHICLES IN THE STATE OF CALIFORNIA.
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Evolution Racewerks - Corporate Logo
T#:6061577
Part#: BM-EXH026SCAT
Ships in 8 Business Days
$ 2,395.00 USD
Free Shipping on orders $49 and up
Restrictions in the exhaust system rob horsepower and torque, especially on turbocharged cars. Thus, removing as many exhaust flow restrictions as possible will increase horsepower and torque significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. Evolution Racewerks use a 200 cell metallic core for their Sports Series High Flow Catted Downpipes. By having fewer cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through them more easily. Therefore, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic, like the factory, is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts. The Evolution Racewerks catted downpipe is constructed out of grade 304 stainless steel and utilizes mandrel bent 3" piping. They are 100% TIG welded by in-house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a V-Band flange which has been duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. Evolution's downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsoever with any exhaust designed to bolt up to stock downpipes. The downpipes will come by default with a brushed finish. Features & Specifications: High Flow 200 cell metallic catalytic converter used Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Mandrel Bent 3" piping. Smooth transition to the exhaust system - Better throttle response and faster turbo spool-up times. 100% Stainless Steel Construction 100% TIG welded for better quality welds Precision CNC machined turbocharger V-Band flange. Retains factory slip-on style connection. Compatible with the factory or aftermarket exhaust systems. Track tested durability. Includes all hardware for complete installation. Limited Lifetime Warranty. CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution-controlled vehicles upon public roads/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHICLES IN THE STATE OF CALIFORNIA.
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Evolution Racewerks - Corporate Logo
T#:6061579
Part#: BM-EXH026TBCAT
Ships in 8 Business Days
$ 2,595.00 USD
Free Shipping on orders $49 and up
Restrictions in the exhaust system rob horsepower and torque, especially on turbocharged cars. Thus, removing as many exhaust flow restrictions as possible will increase horsepower and torque significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. Evolution Racewerks use a 200 cell metallic core for their Sports Series High Flow Catted Downpipes. By having fewer cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through them more easily. Therefore, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic, like the factory, is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts. The Evolution Racewerks catted downpipe is constructed out of grade 304 stainless steel and utilizes mandrel bent 3" piping. They are 100% TIG welded by in-house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a V-Band flange which has been duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. Evolution's downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsoever with any exhaust designed to bolt up to stock downpipes. The downpipes will come by default with a brushed finish. Ceramic Thermal Coating - The purpose of ceramic coating downpipes is to keep heat from the exhaust gases inside the downpipe from radiating out. This keeps underhood temperatures lower and less heat absorption by nearby parts/surfaces. Another added benefit is that by keeping in heat (energy) in the exhaust gases inside the downpipe, exhaust flow velocities stay up, resulting in lower backpressure. The ceramic coating also adds additional corrosion resistance. Evolution utilizes the best ceramic coating possible. Their thermal coating can resist up to 2000F of heat. It is available in black only (all the other colors cannot withstand the heat that high). Features & Specifications: High Flow 200 cell metallic catalytic converter used Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Mandrel Bent 3" piping. Smooth transition to the exhaust system - Better throttle response and faster turbo spool-up times. 100% Stainless Steel Construction 100% TIG welded for better quality welds Precision CNC machined turbocharger V-Band flange. Retains factory slip-on style connection. Compatible with the factory or aftermarket exhaust systems. Track tested durability. Includes all hardware for complete installation. Limited Lifetime Warranty. CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution-controlled vehicles upon public roads/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHICLES IN THE STATE OF CALIFORNIA.
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Packaged by Turner - Corporate Logo
T#:55857771
Part#: 026732TMS03KTKT2
Ships on Oct 29, 2026
New Item
$ 279.99 USD
Free Shipping on orders $49 and up