Evening all, after fitting a RC40, i noticed a quiet popping on over-run, ie if i blip the throttle between changing from 3rd to 2nd etc, on taking up 2nd gear the exhaust pops, bangs and cracks for a second or so. Ive recently fitted a K&N induction kit - ie a big cone filter not unlike carb models. since this, the cracks and pops have become louder and last for up to 2 secs on change downs etc. Personally i think its really cool, but is it having a detrimental effect on my engine at all?
thanks RS