Fabspeed BMW B58 (40i) Sport Catalytic Converter Downpipe (2019+) 971 V6 (2017+) we recommend checking out the

we recommend checking out the Maxflo Performance Exhaust or the Supercup Exhaust System

The numbers are printed on a label on top of the box with the word Motronic on top

Adds 45 whp (wheel horsepower) and 38 ft/lbs of ft-lbs of torque

No need to suffer long periods of downtime for an engine build

Multiple by 20% to the crankshaft 14

Fabspeed BMW B58 (40i) Sport Catalytic Converter Downpipe (2019+) 971 V6 (2017+) we recommend checking out theThis downpipe feature German made HJS 200 cell EURO 6 compliant trimetallic catalytic converters. We use 4 in piping from the engine side to the cat, and 3 in tubing from the cat to the rest of the exhaust. Our larger catalytic converters are better because they allow for more exhaust flow and the increased catalysts surface area allows for better exhaust gas filtering which means emissions compliance that will NOT trigger a check engine light. Our