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The increase in low end power will make a great difference in street drivability with the long gearing of the GT4
Dramatically improves sports car sound
polished stainless steel
we strongly suggest a revised mapping of the ECU or have a qualified Porsche ECU tuner to either disable or isolate and raise the air flow levels within the tables of the ECU to complement the IPD Competition Plenum
986 Boxster BMC F1 Air Filter
Fabspeed BMW M235i (F22) Sport Cat Downpipe Carbon Fiber The increase in low endHP (whp): +21 TQ (ft lbs): +36 Inject new life into your M235i with a perfect high flow catted downpipe! Genuine 200 cell HJS HD catalyst instantly adds a staggering 21 whp (wheel horsepower) and 36 ft lbs of torque at 3000 RPM without triggering a check engine light! FEATURES: Fits all BMW F22 M235i vehicles Designed with a 200 cell HJS HD catalytic converter core for maximum performance and reliability; same cat core used on our Ferrari 458 Italia
