Competition Series Catless Downpipes for 2012-16 M5/M6 S63 Engine F13 It is available in brush

It is available in brush (plain) or mirror polish finish standard

imparts high shear forces on the motor oil

The M5 (F90) and M8 (F92/F93) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters

Hard piping like our TIC charge pipe keeps the inner diameter of the constant and prevents it from ballooning or collapsing

This is when the oil starts to lose viscosity due to heat and start to break down and becomes more susceptible to "shearing" or oil breakdown

Competition Series Catless Downpipes for 2012-16 M5/M6 S63 Engine F13 It is available in brushIntroducing our new Competition Series Catless Downpipes for your twin turbo S63 engine! Fits 2012 16 M5 (F10) and M6 (F12). Key Features: Made in the USA! Manufactured in house. Now available for the 2012 16 BMW M5 M6 S63TU Engines! 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