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 Sports Series High Flow Metallic Catted Downpipe, more power is unleashed!
Now available for the BMW F80/F82/F83/F87 M2C/M3/M4 S55 Engine
High Flow 200 cell metallic catalytic converter
Higher Max Horsepower Power Curve
Higher Initial 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
Brushed, Polished or Black Ceramic Thermal Coated Finishes
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
ER uses a 200 cell metallic core for their Sports Series High Flow Catted Downpipes. By having less cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through it more easily. Thus, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic like the factory is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts.
ER's Sport Series High Flow Catted Downpipes are constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by our in house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a 3.5" V-Band flange which we have duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. 100% bolt on.
Downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsoever. Downpipes will come by default with brushed finish.
Optional 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 absorption 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 additional 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).
Vehicles Supported BMW F87 M2 Competition BMW F8X M3/M4, including Competition
BMW G80 M3
BMW G82 M4
⚠️ WARNING TO OUR CALIFORNIAN CONSUMERS:
This product can expose you to chemicals known to the State of California to cause cancer or birth defects and reproductive harm. For more information go to: https://www.p65warnings.ca.gov/