THESE B58 HIGH FLOW CATLESS RACE DOWNPIPES FIT GEN 1 AND GEN 2 B58 VEHICLES.
These high flow downpipes are hand-crafted from smooth radius 304 grade stainless steel utilizing CNC flanges before being TIG welded in custom-built fixtures. This is a direct replacement and requires no cutting or welding. This downpipe is the perfect match for any BMW with the B58 engine including the Toyota Supra.
Our downpipe is designed to fit the factory exhaust system but can also be utilized with aftermarket catback exhaust systems designed to mate up to the OEM downpipe. Installing this downpipe on its own will provide additional sound, amplifying the cars existing off throttle crackle, as well as an approximately 40whp increase. Combined with custom tuning, this simple modification can yield increases of 100 horsepower and 100 ft/lb of torque.
This item fits the following BMWs:
Fitment guaranteed for all Gen 1 B58 & Gen 2 B58 2 Port/6 Port
2016+ F22/F23 BMW M240i & M240i xDrive
2016+ F30/F31 BMW 340i & 340i xDrive
2016+ F32/F33/F36 BMW 440i & 440i xDrive
2016+ G30 BMW 540i & 540i xDrive
2019–2023 G20/G22/G26 BMW M340i & M440i & xDrive
2019–2022 F22 BMW M240i & M240i xDrive
2021–2023 G42 BMW M240i & M240i xDrive
2019–2023 G05 BMW X5 40i & X5 xDrive40i
2019–2023 G07 BMW X7 40i & X7 xDrive40i
2019–2023 G29 BMW Z4 M40i
2016+ G11/G12 BMW 740i & 740i xDrive
2019–2023 G06 BMW X6 40i & X6 xDrive40i
2017+ G01 BMW X3 M40i
2018+ G02 BMW X4 M40i
2019–2023 G14/G15/G16 BMW 840i & 840i xDrive
2022+ G70 BMW 740i & xDrive
BEST SELLER
BEST SELLER
Power. Sound. Performance. Our signature B58 catless race downpipe is now available at a discounted price.Featuring @Sergwhips
See it. Hear it. Feel the difference.
Take a look at our install video performed on this B58-powered beast — see the fitment, sound, and results for yourself.
ABOUT US
Welcome to Phase 3 Performance, South Florida’s source for high-quality BMW aftermarket parts. We focus on the B58 and S58 platforms, offering performance upgrades that bring out the best in your build.
Whether you’re looking to boost power, refine your setup, or start your next project, we’re here to supply parts that deliver real results. Built for enthusiasts, by enthusiasts—we know what your BMW needs to stand out.
Check out our lineup of products and see how Phase 3 Performance can take your car to the next level.
