M-Tech Performance Stainless Steel B58 Downpipe (2016–2024)

Unleash hidden power and a deeper exhaust note from your BMW or Toyota Supra with the M-Tech Performance B58 Downpipe. Engineered from premium 304 stainless steel, this catless downpipe dramatically improves horsepower, torque, and turbo response—making it the ultimate upgrade for true enthusiasts. Experience maximum performance, reliability, and an aggressive sound that turns heads on the street or at the track.

Compatible Models:

• 2019-2024 BMW M340i (G20/G21) M240i
• 2019-2024 Toyota Supra A90 MK5
• 2016-2019 BMW 340i, 440i, 540i (F30/F32/G30)

Specifications:

• Engine: B58 Turbocharged Inline-6
• Material: 304 Stainless Steel
• Configuration: Catless (for off-road/track use only)
• Part #: MT-B58HS

Key Benefits:

• Increases horsepower and torque by optimizing exhaust flow
• Significantly enhances throttle response and reduces turbo lag
• Produces an aggressive, sporty exhaust note
• Direct bolt-on installation with OEM-style fit and finish
• Built for durability and corrosion resistance