Sports Series High Flow Catted Downpipes 2020+ X3M/X4M S58 Engine JCW Heatsoaking is not an issue

Heatsoaking is not an issue at all as shown by the consistency of the IAT staying in the same temperature range throughout the WHOLE RPM powerband

on certain high speed tracks where we would be at WOT for long periods of time

Introducing our new Sports Series 4" High Flow Metallic Catted Downpipes for your 2021+ Toyota Supra 2

The additional O2 sensor bung will come pre-installed with a plug so that you do not need to run the O2 sensor right away

Sports Series High Flow Catted Downpipes 2020+ X3M/X4M S58 Engine JCW Heatsoaking is not an issueIntroducing our Sports Series High Flow Catted Downpipes for your twin turbo S58 engine! Fits 2020+ X3M and X4M (F97 F98). Key Features: Made in the USA! Manufactured in house. Now available for the 2020+ BMW X3M X4M S58 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