Sports Series High Flow Catted Downpipe for 2018-23 M5/M8 S63M Engine Region Spec:US Spec or Non OPF 5" V-Band flange which we

5" V-Band flange which we have duplicated and CNC machined cut out of billet 304 stainless steel

The factory diverter valves were causing an issue of not being able to hold up against the rigors of high boost application

The only way accomplish this with mandrel bent tubing is to cut the mandrel bends at an off angle and "rig" pieces together

Independent testing (all data & dynos shown below have been independently conducted by our customers) has shown that our FMIC is so efficient in cooling that it has cooled intake air temperatures (IAT) to almost ambient (outside) temperatures

The ducting shroud kits are available in aluminum

Sports Series High Flow Catted Downpipe for 2018-23 M5/M8 S63M Engine Region Spec:US Spec or Non OPF 5" V-Band flange which weIntroducing our new Sports Series High Flow Catted Downpipes for your twin turbo S63M engine! Fits 2018 23 M5 (F90) & 2018 23 M8 (F92 F93). Key Features: Made in the USA! Manufactured in house. Now available for the 2018+ 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