VRSF B58 Downpipe Upgrade – BMW X3/X4 M40iX, 3/4/5/7 Series 40i xDrive & Supra A90 (2016–2024)

Constructed from 4.5" 304 stainless steel, this catless downpipe reduces backpressure by eliminating the factory catalytic converter. Engineered for increased flow, it supports faster turbo spool, improved throttle response, and significant horsepower gains when tuned. Handcrafted TIG welds and a CNC-machined stainless steel flange ensure a smooth transition from the turbocharger to the mid-pipes, minimizing turbulence and optimizing exhaust gas velocity.

Compatible with both right-hand drive and left-hand drive configurations, this system fits the stock cat-back exhaust as well as aftermarket options without modification. Designed for long-term durability, it is backed by a lifetime warranty.

Key Features:

• 4.5" CNC-machined 304 stainless steel construction

• TIG welded by hand for precision and strength

• Reduces backpressure for faster spool and improved response

• Supports power gains of 25–30 hp with tuning

• Compatible with OEM and aftermarket cat-back exhaust systems

• Fits both RHD and LHD vehicles

• Lifetime warranty coverage

Vehicle Fitment

• BMW 2 Series

  • F22/F23 M240i & M240i xDrive (2016–2019)

  • G42 M240i & M240i xDrive (2021–2024)

• BMW 3 Series

  • F30/F31 340i & 340i xDrive (2016–2020)

  • G20 M340i & M340i xDrive (2019–2024)

• BMW 4 Series

  • F32/F33/F36 440i & 440i xDrive (2016–2020)

  • G22/G26 M440i & M440i xDrive (2019–2024)

• BMW 5 Series

  • G30 540i & 540i xDrive (2016–2023)

• BMW 6 Series

  • G32 GT 640i & 640i xDrive (2016–2023)

• BMW 7 Series

  • G11/G12 740i & 740i xDrive (2016–2022)

• BMW 8 Series

  • G14/G15 840i & 840i xDrive (2019–2022)

• BMW X3/X4 Series

  • G01 X3 M40i xDrive (2018–2024)

  • G02 X4 M40i xDrive (2018–2023)

• BMW X5/X7 Series

  • G05 X5 40i & X5 40i xDrive (2019–2024)

  • G07 X7 40i & X7 40i xDrive (2019–2024)

• BMW Z Series

  • G29 Z4 M40i (2019–2024)

• Toyota

  • A90 Supra (2020–2024)