5 SIMPLE TECHNIQUES FOR B16B TYPE R

Can n e one convey to me which kind of gain in hp i really should b getting? Also so i'v looked at acquiring a mugen air filter an box to but there v pricey, dose n e a person no if its well worth obtaining a person an what get i'd get from it. Thanx AshtonB16 and B18 engines are both equally respectable and responsible engines. B16 getting the pio