Competition Series Catless Primary Downpipe 2023+ XM S68 Engine Finish:Brush Finish It's well known that the

It's well known that the N55 engines runs very hot

Increase throttle response and decreases turbo lag

We opted for the Type III Hard Anodizing over the Type II color anodizing which is only aesthetics for this purpose only (even though it cost us considerably more to anodize Type III than Type II)

Intercooler piping features beaded ends

removing as much exhaust flow restrictions will increase horsepower and torque

Competition Series Catless Primary Downpipe 2023+ XM S68 Engine Finish:Brush Finish It's well known that theIntroducing our new Competition Series Primary Downpipes for your twin turbo S68 engine! Fits 2023+ XM (G09). Key Features: Made in the USA! Manufactured in house. Now available for the 2023+ BMW G09 XM S68 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 exhaust system. 100%