BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series G22 (2021+)

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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 Exhaust With Carbon Tips - G22/G23 M440i
Akrapovic Evolution Line Exhaust With Carbon Tips - G22/G23 M440i ...
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Akrapovic - Corporate Logo
T#:2706134
Part#: S-BM/T/18H
Back Ordered
$ 7,546.99 USD
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$ 7,546.99 USD
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This is a high-grade lightweight titanium system, finished with hand-crafted carbon-fiber tailpipes and a high-grade austenitic stainless steel link pipe set. The valves on each side are calculated to tailor the sound, and two acoustic reflectors are fitted on the tailpipes to guide the sound into the car’s cabin. Because the Akrapovič Evolution Line (Titanium) exhaust system has two valves, one more than the stock configuration, a TNG controller is included in the product to activate the additional exhaust valve. To make the sound experience even more unique, there are two tuned resonators – developed especially for this new engine – producing a deep, rich, and sporty sound with no unwanted drone or streaming, perfectly aligned with the straight six-cylinder engine. It weighs 21.7 kg, which is 23% lighter than stock. Power gains of 11.8 hp at 5,600 rpm and torque increases of 17.1 Nm at 4,100 rpm were recorded when tested on the Akrapovič dyno
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Titanium Exhaust Wrap - 2" X 25'
Titanium Exhaust Wrap - 2" X 25'
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Prosport Performance - Corporate Logo
T#:385025
Part#: HEA-WRAPKIT-25
Ships in 1 Business Day
$ 29.99 USD
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$ 29.99 USD
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Constructed for durability with a tight weave, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility. Fiberglass is rated for 1200 degrees, however, this titanium wrap can withstand 1800 degrees! 

Key Features:

  • 2" wide x 1/16" thick
  • Durable, tightly woven, 100% fiberglass
  • Reduce under hood temperatures
  • Protect other engine components
  • Protect your hands/arms from burns
  • Each roll comes with 5 FREE, 14" long stainless steel zip ties
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Prosport Titanium Exhaust Wrap - 2" x 50
Prosport Titanium Exhaust Wrap - 2" x 50
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Prosport Performance - Corporate Logo
T#:385019
Part#: HEA-WRAPKIT-50
Ships on Aug 3, 2026
$ 49.99 USD
Free Shipping on orders $49 and up
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$ 49.99 USD
Free Shipping on orders $49 and up
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Constructed for durability with a tight weave, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility. Fiberglass is rated for 1200 degrees, however, this titanium wrap can withstand 1800 degrees!
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Prosport Gold Heat Reflective Tape - 2" x 15'
Prosport Gold Heat Reflective Tape - 2" x 15'
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Prosport Performance - Corporate Logo
T#:385020
Part#: HEA-GWRAP-15
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$ 33.99 USD
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$ 33.99 USD
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Constructed of laminated light-weight glass cloth, this gold reflective heat tape is designed to reflect 80% of radiant heat. With excellent pliability, this tape is easy to install. It's as simple as peel and stick.
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Prosport Fiberglass Exhaust Wrap - Black - 2" x 50'
Prosport Fiberglass Exhaust Wrap - Black - 2" x 50'
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Prosport Performance - Corporate Logo
T#:385018
Part#: HEA-WRAPKIT-BLK
Ships in 1 Business Day
$ 28.00 USD
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$ 28.00 USD
Free Shipping on orders $49 and up
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Constructed of durable, tight-woven fiberglass, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility.
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Prosport Fiberglass Exhaust Wrap - White - 2" x 50'
Prosport Fiberglass Exhaust Wrap - White - 2" x 50'
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Prosport Performance - Corporate Logo
T#:385017
Part#: HEA-WRAPKIT-WHT
In Stock at Vendor
$ 31.99 USD
Free Shipping on orders $49 and up
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$ 31.99 USD
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Constructed of durable, tight-woven fiberglass, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility.
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Akrapovic Sound Kit - Wireless System
Akrapovic Sound Kit - Wireless System
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Akrapovic - Corporate Logo
T#:2706178
Part#: P-HF1351
Back Ordered
$ 610.99 USD
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$ 610.99 USD
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The Akrapovic Sound Kit is a wireless exhaust valve control system that allows you full control over the valve system in your titanium Akrapovic exhaust. This enable you to open the exhaust valve when you want to turn as many heads as possible or keep it closed when your out for an easy Sunday drive.
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Akrapovic Downpipe With Cat - G20/G21/G22/G23 M340i M440i
Akrapovic Downpipe With Cat - G20/G21/G22/G23 M340i M440i
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Akrapovic - Corporate Logo
T#:2706135
Part#: DP-TY/SS/1
In Stock at Vendor
$ 5,565.99 USD
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$ 5,565.99 USD
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This product is crafted from high-quality stainless steel, with the front part of the downpipe cast in Akrapovič’s in-house foundry. A sporty 300 cpsi catalytic converter is integrated into the downpipe, with the heat insulation made of stainless steel and a flexible tube incorporated into the middle section. Power gains with an Evolution Line (Titanium) fitted with the Akrapovič downpipe of 18.7 kW (25.4 hp) at 5,600 rpm and torque increases of 34.7 Nm at 2,400 rpm have been recorded when tested on the Akrapovič dyno against a BMW M440i with the standard stock exhaust. It delivers a pure racing sound, full of emotion and adrenalin-inducing enjoyment, and great feedback at high revs, all without unwanted drone.
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