CTS Turbo 4.5″ Race Downpipe for BMW B58 1/2/3/4/5/7 Series RWD & XDrive – (2016-2024)
Ships free in the US
Make sure this fits your car
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
The CTS Turbo Catless Downpipe BMW B58 is made to maximize exhaust flow for 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:
- 4.5″ downpipe, reducing down to 3.15″ or 80mm for perfect fitment to a factory or aftermarket exhaust
- Precisely designed and tested on a real car in the real world
- T304 stainless steel, TIG welded back-purged construction
- Replaces restrictive factory downpipe
- Great power upgrade with uncompromising performance
- Incredible sporty exhaust sound, subtle when cruising
- No drone with factory exhaust
We recommend replacing the downpipe gasket when installing, factory BMW gasket 18328612538 is required (not included).
- 2016+ F20 BMW M140i
- 2016+ F22 BMW M240i & M240i xDrive
- 2016+ F30/F31/G20 BMW 340i & 340i xDrive
- 2016+ F32/F33/F36/G22/G23/G26 BMW 440i & 440i xDrive
- 2016- 2024 G30/G31 BMW 540i & 540i xDrive
- 2016- 2024 G11/G12 BMW 740i & 740i xDrive
- 2018- 2024 G01 BMW X3 M40i xDrive
- 2018- 2024 G01 BMW X4 M40i xDrive
- 2019- 2024 G01 BMW X5 40i xDrive
Stage 2 software is required to avoid check engine light. Only fits cars without GPF/OPF.
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 | M440i | G22/G23/G26 | 2021+ | |
| BMW | M240i | G42 | 2022+ | |
| BMW | M240i / M235i | F22/F23 | 2014–2021 | |
| BMW | 340i / 335i / 330i | F30/F31 | 2012–2019 | |
| BMW | 440i / 435i | F32/F33/F36 | 2014–2020 | |
| BMW | 540i / M550i | G30/G31 | 2017–2023 | |
| BMW | Z4 M40i | G29 | 2019+ | |
| Toyota | GR Supra 3.0 | A90/A91 | 2020+ |
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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