THE 5-SECOND TRICK FOR B16 ENGINE

Can n e one particular tell me which kind of achieve in hp i ought to b having? Also so i'v looked at acquiring a mugen air filter an box to but there v pricey, dose n e just one no if its well worth having one particular an what gain i'd get from it. Thanx AshtonNevertheless, the demand for people K20 variants has also produced them costlier and m