george929 said:With usually fitting a universal type filter to a Naturallyaspirated engine (so not turbo or super charged)
you wont get any real power gain. Your morelikelyto get a power loss due to drawing in warm air from the engine bay. You can get a gain from adding a (ram air) style cold air intake.Basiclyyou want to run a pipe from ideally a fog light hole.. up to the intake on the air filter box... this will supply the air filter with cold air constantly.. cold air = dense air = more oxygen = bigger bang!! = more powwaaar !! well only a little power. NA tuning is allot more complicated than simple Forced induction. Personally i like the work that is needed when tuning a NA engine..