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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW F90 M5 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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Akrapovic Evolution Line Titanium Cat Back Exhaust System w/ Carbon F...

T#:558669

Part#: S-BM/T/2HKT

Ships in 3 Business Days

$ 11,798.99

This product was last offered at the strikethrough price on
08-13-2026

$ 11,319.99 USD

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$ 11,319.99 USD

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The Akrapovic Cat-back Titanium exhaust system for the BMW F90 M5 is designed for drivers who demand more power and less weight. In addition to weight reduction and a power gain, one of the tasks of the Akrapovic team was also to make the sound of the M5 become music to ones ears. An optional wireless "dualmode" exhaust flap control allows the vehicle to have a more civilized, but deeper than stock sound at low speed. However, when the exhaust flap is opened the muffler is bypassed, creating a deep and sporty sound much more in keeping with the personality of the car.

Power gains come in at +11.3hp (at 5700 RPM) and 21.3Nm (at 2300 RPM) with just the exhaust alone, and a total weight savings of 20.8 lbs! That is a 32.6% overall reduced difference in weight from stock.

Not for sale outside the US or Canada.

This item fits the following BMWs:
2018+ F90 BMW M5

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Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"

10X Entries Into Our F80 M3 Sweepstakes

T#:580382

Part#: B8800066

Ships in 1 Business Day

Sale - Save 25% $ 49.99

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

$ 37.49 USD

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Sale - Save 25%

$ 49.99

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

$ 37.49 USD

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Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. Fits all Oxygen sensors with 7/8in (22mm) hex.

Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6" ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580383

Part#: B8800067

Ships in 1 Business Day

Sale - Save 20% $ 29.99

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

$ 23.99 USD

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Sale - Save 20%

$ 29.99

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

$ 23.99 USD

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This 1/2" Drive, 7/8" x 6" Extra Long O2 sensor tool is used to remove difficult to reach oxygen sensors.

Active Autowerke - S63TU4 Aflow Catted Downpipes - F90 M5, F92 M8, F9...

These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.

T#:40038643

Part#: 11-063A

Ships in 3 Business Days

5% off MSRP $ 2,399.00

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

$ 2,279.99 USD

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5% off MSRP

$ 2,399.00

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

$ 2,279.99 USD

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The Active Aflow Catalytic Converters are rated for engines putting out up to 800 horsepower while maintaining a high flow capacity.

Akrapovic Sound Kit - F90 M5

T#:558677

Part#: P-HF1132

In Stock at Vendor

$ 758.99 USD

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$ 758.99 USD

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The Sound Kit is a remote control for the valves on the Akrapovic muffler. While the muffler valves are also controlled like the factory valves in Comfort, Sport, and Sport+ modes, the Sound Kit will let you open or close the valves via handheld remote or even from your phone (iOS or Android app). The Sound Kit works with the existing wiring for the Akrapovic system so installation is a breeze.

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Bav Auto Exhaust Doughnut Stretcher

10X Entries Into Our F80 M3 Sweepstakes

T#:580373

Part#: B8800051

In Stock

Sale - Save 25% $ 20.99

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

$ 15.74 USD

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Qty

Sale - Save 25%

$ 20.99

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

$ 15.74 USD

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This tool is not vehicle specific and is a universal tool that may or may not work on all applications. This exhaust doughnut stretcher features an offset J-hook to grab onto the rubber rings used to mount most BMW exhaust systems. Features a large coated handle for a comfortable grip.

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Active Autowerke High Flow Catted Downpipes - S63

T#:2393421

Part#: 11-063

Ships in 10 Business Days

5% off MSRP $ 2,999.00

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

$ 2,849.99 USD

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5% off MSRP

$ 2,999.00

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

$ 2,849.99 USD

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For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. These S63 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance. Features: NO CEL when using this downpipe GESI EPA registered high flow and fully OBD2 compliant Casted upper stainless steel V-Band for precise fitment 4.50" diameter piping allows for maximum power output Quicker turbo spool Rated for 500 to 850 hp applications Withstands up to 1500 F Can reach operational efficiency within 9 seconds of startup Easily bolts-on no cutting or welding required Accepts OEM O2 sensor heat shield Durable construction from TIG welded 304 stainless steel Precise fitment Ultra high flow 400 cell per square inch catalyst EPA compliant for use on OBD2 vehicles (1996 and newer) except in California 304 stainless steel substrate is furnace braised to the mantle for outstanding durability GESi proprietary precious metal loading technology ensures greatly reduced emissions Ideal for Forced Induction Applications with no loss of HP Both passengers and drivers are safe from harmful emissions and noise Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter) Made in Miami, Florida

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Akrapovic Evolution Tail Pipe Set (Carbon) w/ Red/White Akraprovic Lo...

T#:558668

Part#: TP-CT/47/RS

In Stock at Vendor

$ 2,208.99 USD

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$ 2,208.99 USD

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Elevate your vehicle's aesthetic with the unparalleled quality of these Akrapovic carbon fiber exhaust tips. Crafted with a sleek matte carbon fiber finish and titanium interiors, these tailpipes promise to enhance the visual appeal of your car.

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