OneFastShop S55 3 Inch Catless Downpipes BMW M3 F80 M4 F82 M2 F87 2015-2020

Unleash the full potential of your S55 with the OneFastShop 3 inch catless downpipes. Engineered for the BMW F chassis M3, M4, M2 Competition, and M2 CS from 2015 to 2021, this paired set strips out both factory catalytic converters to deliver the aggressive twin turbo sound and performance the S55 was built for.

Real World Performance Gains:

• +25 to +40 horsepower with proper tuning
• Even more power on big turbo and upgraded builds
• Dramatically faster turbo spool and sharper throttle response
• Aggressive twin turbo tone from the turbo outlet back
• Stage 2+ tune ready, supports serious power builds

Features:

• Full 3 inch diameter from each turbo outlet
• Seamless cast v-band turbo transition
• 304 grade stainless steel construction
• CNC machined flanges
• Hand TIG welded joints
• Integrated flex sections on both pipes
• Lifetime warranty on defects
• LHD and RHD compatibility
• Compatible with OEM and aftermarket cat back exhausts
• Direct bolt on installation, no cutting required

Technical Specs:

• Diameter: 3 inch (full diameter maintained from each turbo outlet)
• Material: 304 grade stainless steel
• Turbo transition: Seamless cast v-band
• Flanges: CNC machined
• Welding: Hand TIG welded
• Flex section: Integrated on both pipes
• Configuration: Paired set (twin turbo), catalytic converters removed
• Engine: BMW S55 twin turbo

Contents:

• 2 S55 catless downpipes (driver and passenger side)

Gasket required for installation: Two turbo to downpipe gaskets are required to seal these downpipes to your factory turbos. Our 3.5 Inch Turbo to Downpipe Gasket for BMW S55 is available separately, add it to your order from our store.

Vehicle Fitment:

Important Note (S55 only):

This kit fits S55 equipped vehicles only. The standard F87 M2 with the N55 engine requires a different downpipe and is not compatible. This product is intended for off-road and track use only. It is not legal for use on public roads and may not comply with emissions regulations.