OneFastShop S58 Catless Downpipes BMW X3M F97 X4M F98 2019-2026

Unleash the full potential of your S58 X3M or X4M with the OneFastShop catless downpipes. Designed specifically for the F97 X3M and F98 X4M from 2019 to 2026, this paired set eliminates both factory catalytic converters to unlock the aggressive twin turbo performance these SUVs were built to deliver.

Real World Performance Gains:

• +30 to +50 horsepower with proper tuning
• Even more power on big turbo and upgraded builds
• Dramatically faster turbo spool and sharper throttle response
• Aggressive twin turbo growl from idle to redline
• Stage 2+ tune ready, supports serious power builds

Features:

• 304 grade stainless steel construction
• CNC machined billet flanges
• Hand TIG welded joints
• Welded mounting brackets on both downpipes
• Integrated flex sections on both pipes
• Grade 12 mounting hardware included
• 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:

• Material: 304 grade stainless steel
• Tubing: Mandrel bent
• Flanges: CNC machined billet
• Welding: Hand TIG welded
• Mounting: Welded brackets on both pipes
• Flex section: Integrated on both pipes
• Hardware: Grade 12 mounting bolts
• Configuration: Paired set (twin turbo), catalytic converters removed
• Engine: BMW S58 twin turbo (X3M F97 and X4M F98)

Contents:

• 2 S58 catless downpipes (driver and passenger side)
• Grade 12 mounting hardware

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 S58 is available separately, add it to your order from our store.

Vehicle Fitment:

Important Note:

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. Check local laws before installation.