VRSF BMW B58 Catless Downpipe

This race downpipe is the best bang-for-buck modification available for the B58. Backpressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe entirely, resulting in faster turbo spool, a genuine increase in power, and a more aggressive exhaust note.

The downpipe features a full 4.5in stainless steel design with a CNC-machined 304-grade stainless steel flange offering a smooth transition from the turbo to the mid-pipes. Hand-crafted from SS304-grade stainless steel with smooth radius bends to decrease turbulence, it fits the stock catback as well as all aftermarket catbacks, with no modification necessary for either RHD or LHD models.

Important: this downpipe is not compatible with OPF/GPF-equipped models. Confirm your specific vehicle's emissions configuration before ordering.

Also available: this same downpipe with a heat shield finish, sold separately, for those wanting the added thermal protection in the engine bay.

Intended use: removal of emissions equipment means this part is intended for closed-course/competition use, not for road use where emissions compliance is required.

Why Choose This Downpipe

• Fully catless design for maximum exhaust flow and turbo response
• Full 4.5in stainless steel design with a CNC-machined 304-grade stainless steel flange
• Fits both RHD and LHD models with no modification necessary
• Fits stock and aftermarket catbacks
• Genuine lifetime warranty plus "No Hassle" satisfaction guarantee on fitment

Compatibility

• BMW F20/F22 M140i (B58, including xDrive)
• BMW F22/F23 M240i (B58, including xDrive)
• BMW F30/F31 340i (B58, including xDrive)
• BMW F32/F33/F36 440i (B58, including xDrive)
• BMW G42 M240i (B58, including xDrive)
• BMW G20/G21 M340i (B58, including xDrive)
• BMW G22/G23/G26 M440i (B58, including xDrive)
• BMW G30/G31 540i (B58, including xDrive)
• BMW G11/G12 740i (B58, including xDrive)
• BMW G01 X3 M40i (B58)
• BMW G02 X4 M40i (B58)
• BMW G05 X5 40i (B58, including xDrive)
• BMW G29 Z4 M40i (B58)
• Toyota Supra MK5 (B58)

Not compatible with: OPF/GPF-equipped models.