CTS Turbo BMW F2X/F3X/G20/G30 230i/330i/430i/530i & xDrive B46 High-Flow CAT

Free up flow on your B46-powered BMW with the CTS Turbo high-flow cat, built for North American market vehicles. Designed to drop in where the restrictive factory downpipe sits, it maximizes exhaust flow for the biggest power gains while retaining a high-flow 200-cell catalytic converter for a clean, streetable setup.

Why it works

• Fitment specifically for B46 engines (US-spec vehicles)
• T304 stainless steel, TIG welded and back-purged construction
• Replaces the restrictive factory downpipe with a high-flow 200-cell catalytic converter
• Precisely designed and tested on a real car in the real world
• Incredible sporty exhaust sound, subtle when cruising, no drone with factory exhaust

Fitment (B46 SULEV engines only, flange connection)

• 2016–2020 F20/F22 BMW 220i, 230i incl. xDrive
• 2016–2020 F30/F31 BMW 320i, 330e, 330i incl. xDrive
• 2016–2020 F32/F33/F36 BMW 420i, 430i incl. xDrive
• 2016–2020 G30 BMW 530i, 530e incl. xDrive
• 2016–2020 G11 BMW 730i, 740e incl. xDrive
• 2019–2023 G20 BMW 320i, 330i incl. xDrive
• 2019+ G29 BMW Z4 30i
• 2020+ A91 Toyota Supra 2.0

Always verify your vehicle before ordering. Bootmod3 Stage 2 software is strongly recommended to avoid a CEL. Catalytic converters damaged by a crackle tune are not covered under warranty. Only fits cars without GPF/OPF — check the downpipe connection on your vehicle before ordering. 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.