CTS Turbo BMW F2X/F3X/G20/G30 230i/330i/430i/530i & xDrive B46 High-Flow CAT
Ships free in the US
Make sure this fits your car
Fits: M340i G20/G21, 340i / 335i / 330i F30/F31, 540i / M550i G30/G31
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
The CTS Turbo High-Flow Cat for the BMW B46 North American Market vehicles is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential!
Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.
Product Details:
- Precisely designed and tested on a real car in the real world
- Fitment specifically for B46 engines (North American-spec vehicles)
- T304 stainless steel, TIG welded back-purged construction
- Replaces restrictive factory downpipe with high-flow 200 cell catalytic converter
- Great power upgrade with uncompromising performance
- Incredible sporty exhaust sound, subtle when cruising
- No drone with factory exhaust
The use of Bootmod3 stage 2 software is strongly recommended to avoid the CEL from coming on.
Fitment for B46 SULEV engines only, with flange connection to exhaust. ALWAYS check your vehicle before placing your order:
- 2016-2020 F20/F22 BMW 220i, 230i including xDrive (B46 2.0T engine)
- 2016-2020 F30/F31 BMW 320i, 330e, 330i including xDrive (B46 2.0T Engine)
- 2016-2020 F32/F33/F36 BMW 420i, 430i including xDrive Models (B46 2.0T Engine)
- 2016 – 2020 G30 BMW 530i, 530e including xDrive Models (B46 2.0T Engine)
- 2016-2020 G11 BMW 730i, 740e including xDrive Models (B46 2.0T Engine)
- 2019-2023 G20 BMW 320i, 330i including xDrive (B46 2.0T Engine)
- 2019+ G29 BMW Z4 30i (B46 2.0T Engine)
- 2020+ A91 Toyota Supra 2.0 (B46 2.0T Engine)
Catalytic converters damaged by “crackle tune” are not covered under warranty.
Stage 2 software is required to avoid check engine light.
Only fits cars without GPF/OPF, check the downpipe connection on your vehicle before order.
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| BMW | M340i | G20/G21 | 2019+ | |
| BMW | 340i / 335i / 330i | F30/F31 | 2012–2019 | |
| BMW | 540i / M550i | G30/G31 | 2017–2023 |
Not sure? Call or text 945-954-1142 with your car or VIN.
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
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