BMW Catback Exhaust Systems for BMW F90 M5 S63 4.4L

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Catback Exhaust systems are designed to completely replace everything from your cats all the way back to your exhaust tips. Traditionally, if you are planning on upgrading your entire exhaust system, you will also need headers and downpipes.
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Akrapovic - Corporate Logo
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
$ 11,319.99 USD

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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Eisenmann - Corporate Logo
T#:584734
Part#: B5555.20904.CKT
Ships on Oct 20, 2026
Starting at $ 6,290.00 USD
Free Shipping
Starting at $ 6,290.00 USD
Free Shipping
Maximize power, performance, and style.
Eisenmann - Corporate Logo
T#:584717
Part#: B5555.00904.CKT
Ships on Oct 20, 2026
Starting at $ 6,790.00 USD
Free Shipping
Starting at $ 6,790.00 USD
Free Shipping
Maximize power, performance, and style.

Eisenmann - Corporate Logo
T#:584744
Part#: B5555.20904.BCKT
Ships on Oct 20, 2026
Starting at $ 7,190.00 USD
Free Shipping
Starting at $ 7,190.00 USD
Free Shipping
Maximize power, performance, and style.

Eisenmann - Corporate Logo
T#:584706
Part#: B5555.00904.B
Ships on Oct 20, 2026
Starting at $ 4,995.00 USD
Free Shipping
Starting at $ 4,995.00 USD
Free Shipping
Maximize power, performance, and style.
Eisenmann - Corporate Logo
T#:584694
Part#: B5555.00000.BK
Ships on Oct 20, 2026
Starting at $ 5,990.00 USD
Free Shipping
Starting at $ 5,990.00 USD
Free Shipping
Maximize power, performance, and dramatically reduce weight.

Vivid Racing - Corporate Logo
T#:4934913
Part#: VR-F90M5-170T
Ships in 10 Business Days
$ 5,295.00 USD
$ 5,295.00 USD
The M5 is an executive sports sedan with racing flair and everyday drivability. As it has for generations, the BMW M5 delivers the total package when it comes to looks, power, and performance. For those looking to start taking their M5 to the next level, a new performance exhaust may be just the thing you need to get started! VR Performance's Titanium Valvetronic Performance Exhaust is a great upgrade for the F90 M5 in terms of added power, enhanced drivability, and intensified tone. Crafted from high-quality titanium, this system features 80mm piping throughout the dual exhaust all the way to the ion plated rear muffler. The entire system is designed as a direct replacement for the OE exhaust while reducing weight and improving performance. Includes compatibility with the valvetronic system which adjusts tone based on driving mode. Features: Lightweight Titanium Construction On the fly switch from Quiet to Loud Levels Increased Horsepower and Torque 80mm Diameter Piping Throughout 90mm Quad Burnt Titanium Exhaust Tips with VR Logo Catback system weighs 39.40 lbs Works with OEM Exhaust Valves and Stock or Aftermarket Race Downpipes
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