



CTS Turbo BMW S58 F97/G01 X3M/X3MC & F98/G02 X4M/X4MC High-Flow CATS
Open up your S58 3.0 twin-turbo with CTS Turbo high-flow cats for the F97/G01 X3M/X3M Competition and F98/G02 X4M/X4M Competition. CAD-engineered to drop perfectly into place of the restrictive factory catalytic converters, they are manufactured from cast T304 stainless steel, hand TIG-welded and back-purged for years of reliable service.
They also transform the sound: a louder, deeper growl with a much more pronounced crackle on downshift, and a confident punch as you bang through all 8 gears. With an aftermarket exhaust already fitted, it gets even louder.
Details
- 304 stainless steel, TIG-welded back-purged construction
- 200 cell high-flow cats
- Designed and tested on a real car in the real world
- Great power upgrade with uncompromising performance
- Incredible sporty exhaust sound, subtle when cruising
- No drone with 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
To clear the CEL that will occur, proper stage 2 tuning software must be used.
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.
Pairs well with

CTS Turbo BMW S58 F97/G01 X3M/X3MC & F98/G02 X4M/X4MC High-Flow CATS
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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