Omar900ss Posted July 5, 2022 Share Posted July 5, 2022 HI everyone, I have recently fitted a DK Valvtronc exhaust and a pair of K&N filters. The car is now undrivable in both valve open or closed above 2000rpm so thats 70mph. The resonance inside the car is unreal. Has anyone experienced anything similar? Is there a fix? I mean the exhaust was £1000 and the fitting another £500 as they hard wired it in Link to comment Share on other sites More sharing options...
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