CTS Turbo 3" Stainless Steel High-Flow CATS BMW S55 F80 F82 F87 M3/M4/M2 Competition

CTS Turbo brings serious flow to the S55 with high-flow cat downpipes for the F80/F82/F87 M3/M4/M2 Competition. These stainless steel high-flow CAT downpipes deliver faster spool, better transient boost response, higher boost and great sound. As the first part of the CTS modular exhaust system, they are compatible with factory mid-pipes and the upcoming CTS Turbo mid-pipes — and with appropriate tuning you can expect strong torque gains. CAD simulation streamlined the exhaust flow and ensured seamless integration with factory and CTS components, with many hours of R&D spent on fit, flow and sound.

Features

• Large 3" diameter
• Durable 304 food-grade stainless steel
• Laser-cut flanges
• Factory-like placement of O2 sensors
• Designed using the latest 3D scanning technology
• Exhaust flow simulated with CAD software for optimal routing
• Perfect fit with factory or aftermarket mid-pipes
• Aggressive sound — really makes that S55 scream

Fitment

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

Bootmod3-compatible software is strongly recommended; the 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.