CTS Turbo BMW S58 F97/G01 X3M/X3MC & F98/G02 X4M/X4MC Downpipes

Unlock the 3.0L twin-turbo S58 in your BMW X3M or X4M with CTS Turbo downpipes engineered to maximize exhaust flow where the factory catalytic converter holds power back. CAD-developed for a perfect OE-location fit, each pipe is 304 stainless, hand TIG-welded and back-purged for years of reliable service.

The character change is just as satisfying: a deeper, louder growl, a sharp crackle on downshift and a confident punch through all 8 gears — louder still with an aftermarket exhaust.

What you get

• Developed and tested on a real car in the real world
• 304 stainless steel, TIG-welded and back-purged
• Replaces the restrictive factory catalytic converter
• Strong power gain with uncompromising performance
• Sporty note that stays subtle when cruising
• No drone with the factory exhaust

Fitment

• 2019-2022 F97/G01 BMW X3M
• 2019-2022 F97/G01 BMW X3M Competition
• 2019-2022 F98/G02 BMW X4M
• 2019-2022 F98/G02 BMW X4M Competition

Proper stage 2 tuning software must be used to clear the CEL that will otherwise appear.

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.