CTS Turbo BMW F90 M5/M5C & BMW G15/G16 M8/M8C RACE DOWNPIPE SET

CTS Turbo CTS Turbo BMW F90 M5/M5C & BMW G15/G16 M8/M8C RACE DOWNPIPES are made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts. Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory parts. Manufactured from CAST T304 stainless steel; hand TIG welded and back-purged to ensure years of reliable performance. In addition to unleashing the power and performance of your 4.4 Twin Turbo, our race downpipe will make your vehicle sound like it really should. When installed with factory exhaust it produces a louder and deeper growl with much more pronounced exhaust "crackle" on downshift. While up-shifting you will enjoy a confident "punch!" as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system. Product Details:

• 80mm or 3.15" diameter piping
• Designed and tested on a real car in the real world
• Cast T304 stainless steel, TIG welded back-purged construction
• Replaces restrictive factory parts
• Great power upgrade with uncompromising performance
• Incredible sporty exhaust sound, subtle when cruising
• No drone with factory exhaust

Fitment for M cars only with S63 engine:

• 2018-2024 F90 BMW M5 (Including Competition Models)
• 2019-2024 G15/G16 M8 Coupe, Convertible & Gran Coupe (Including Competition Models)

To remove the CEL that will occur, proper stage 2 tuning software must be used.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 3 applications

M5C

Make	Model	Engine	Years
BMW	M5C (F90)		2018–2022

M5

Make	Model	Engine	Years
BMW	M5 (F90)		2018–2022

M8

Make	Model	Engine	Years
BMW	M8 (F91/92/93)		2020–2022

Fitment data last updated: 2026-09-25

✓ Fits 3 vehicle applications Check vehicle fitment before ordering View fitment