NEW STEP BY STEP MAP FOR JDM HONDA ENGINE

Can n e one particular tell me what kind of attain in hp i should b obtaining? Also so i'v checked out getting a mugen air filter an box to but there v expensive, dose n e just one no if its truly worth getting a single an what get I might get from it. Thanx AshtonGreat individuals, top quality stock, and definitely helpful customer service. My 3rd