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Adjustable spring preload for maximum responsiveness
Verbeterde luchtstroom en boostrespons door grotere buisdiameter
an IE cold Air Intake and Intercooler
Is ECU tuning compulsory
not if you keep the OEM downpipes
Decat Downpipe Audi RS4 B9 / RS5 B9 2.9 TFSI bmw-1-series-f2x---11-20-116i-esi1434592 Adjustable spring preload for maximumThe decat Downpipe for the Audi RS4 B9 RS5 B9 is a fully decat version without a catalytic converter, manufactured from stainless steel. This part connects directly to the turbo and offers a bolt on replacement for the original Downpipe. The connection diameter on the engine side is 143 mm and on the exhaust side 76 mm. This product is suitable for left hand drive vehicles only. For optimum results, a software remap by a certified specialist is
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