Sports Series High Flow Catted Downpipe for S63M Engine

Introducing our new Sports Series High Flow Catted Downpipes for your twin turbo S63M engine!  Fits 2017+ F90 M5 & 2018+ F92/F93 M8.

Ease of Installation: (1 Easy, 5 Hard) 3

Installation Guide

Parts Checklist

Key Features:

• Now available for the 2017+ BMW F90 M5 & 2018+ F92/F93 M8 S63M Engines!
• 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.
• Mirror polish or brush finish
• Available with the 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.

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! 

We use a 200 cell metallic core for our 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.

The 2017+ BMW M5 (F90) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters.  Our Sports Series High Flow Metallic Catted Downpipe replaces the primary catalyatic converter with our high flow metallic catalytic converter and deletes the secondary ones.