Restrictions in the exhaust system robs horsepower and torque especially on turbocharged cars. Thus, removing as much exhaust flow restrictions will increase horsepower and torque significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. The factory catalytic converter is made up of catalyst material formed into "honeycomb" weaves. Exhaust gas must pass through these tiny "honeycomb" weaves on their way to the exhaust system thus causing a major exhaust flow restriction. It also causes turbulence after the catalytic converter which causes the exhaust flow to slow down (which increases restriction). By replacing the factory downpipe/catalytic converter with our Competition Series Catless Downpipe, more power is unleashed! You will feel the difference instantly.
The 2025+ BMW M5 (G90) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters. Our Competition Series Catless Downpipes replace both the primary and secondary sections.
Features :
- Higher Max Horsepower Power Curve
- Higher Intial Torque Curve. Torque curve hits faster and higher and longer.
- Better throttle response and faster turbo spool up times.
- Mandrel Bent 3" piping. Smooth transition to the exhaust system.
- 100% Stainless Steel Construction
- 100% TIG welded for better quality welds
- Precision CNC machined turbocharger V-Band flange.
- Mirror polish or brush finish
- Available with high temperature black thermal coating to reduce underhood temperatures.
- Retains factory slip on style connection.
- Compatible with the factory or aftermarket exhaust systems.
- Track tested durability.
- Includes all hardware for complete installation.
- Limited Lifetime Warranty.
Fitments :
- BMW M5 G90 S28 Engine 2025+
This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
https://www.p65warnings.ca.gov/
