CTS Turbo 3" Stainless Steel Downpipe BMW S55 F80 F82 F87 M3/M4/M2 Competition

Wake up your S55 with the CTS Turbo 3" stainless steel high-flow downpipes for the BMW F80 M3, F82 M4, and F87 M2 Competition. As the first piece of the CTS modular exhaust system, they deliver faster spool, better transient boost response, higher boost, and a seriously aggressive note — you can expect gains of 27whp and 40 ft-lbs of torque when paired with the right tuning software.

Why it works

• Large 3" downpipes for freer flow
• Durable 304 food-grade stainless steel
• Laser-cut flanges and factory-like O2 sensor placement
• Designed using the latest 3D scanning technology
• Exhaust flow simulated with CAD to optimize routing
• Perfect fit with factory or aftermarket mid-pipes
• Aggressive sound that really makes the S55 scream

Fitment

• 2015+ BMW S55 M3 (North America)
• 2015+ BMW S55 M4 (North America)
• 2018+ BMW S55 M2C (North America)

Bootmod3 software compatible with downpipes is strongly recommended. A CEL will illuminate if correct tuning is not used. Stage 2 software is required to avoid a check engine light.

Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.