Introducing our new Competition Series Catless Downpipes for your twin turbo S58 engine!  Fits 2019+ F97 X3M | F98 X4M includes Competition.

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 2019+ BMW F97 X3M | F98 X4M incl. Competition has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters.  Our Competition Series Catless Downpipes replace the primary sections.

• Now available for the 2019+ BMW F97 X3M | F98 X4M includes Competition S58 Engines!
• 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.

Options

Ceramic Thermal Coating

The purpose of ceramic coating downpipes is to keep heat from the exhaust gases inside the downpipe from radiating out.  This keeps underhood temperatures lower and less heat absortion by nearby parts/surfaces.  Another added benefit is that by keeping in heat (energy) in the exhaust gases inside the downpipe, exhaust flow velocities stay up, resulting in lower backpressure.  The ceramic coating also adds additonal corrosion resistance.  We utilize the best ceramic coating possible.  Our thermal coating can resist up to 2000F of heat.  It is available in black only (all the other colors cannot withstand heat that high).

The ER downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsover.  The downpipes will come by default in Brushed Finish.  

BMW 2019+ F97 X3M | F98 X4M with OPF/GPF includes Competition Package

*Only fits OPF/GPF models. For Non-OPF/GPF, you will need: Evolution Racewerks (ER) BMW F97 F98 Catless Primary Downpipe (X3M & X4M)