ok, cars been re mapped for some mods, then i put some uprated headers on it and got a second re map and its been a bit laggy since and mapper said it was a little laggy than before and i think the power gain is not noticable ( think there semi unequal) sounds like a super bike at full whak, but anyway am thinking of porting my old standard ones and getting rid of 4 to 1 tubular ones and the proper rumble back due to a recent thread on hear but dose any one think il need another re map after or would it be fine