I have installed a cone filter with cold air feed to it and since fitting it, it whistles slightly then roars at high revs (i think normal), then relase throtle it dumps like a DV? then kinda whistles louder after, sounds unusual? This didn't happen when I had my standard airbox on!
Please help me??
NOTE: I have changed all clips, all tight, can't feel any leaks around anywhere in the engine! Has no error codes or anyting