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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
It features 660 cubic inches of very efficient high density bar & plate core (35% larger) versus the factory 425 cubic inches of less efficient tube & fin core
They are 100% TIG welded by our in house fabricators and built in the USA
This is on a stock turbo A4 from a 2nd gear pull only in high 40 degree temperatures
the factory turbo inlet hose may completely collapse and suffocate the turbo
The Competition Series Core features a thick 3" core
Competition Series Catless Secondary Downpipes 2019-23 X5M/X6M S63M Engine Finish:Polish Finish It features 660 cubic inchesIntroducing our Competition Series Catless Secondary Downpipes for your twin turbo S63M engine! Fits 2019 23 X5M (F95) & 2020 23 X6M (F96). Key Features: Made in the USA! Manufactured in house. Now available for the 2019 23 BMW F95 X5M & F96 X6M S63M Engines! Does not set off the Check Engine Light (CEL). Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Better throttle response and faster
