WHAT DOES B16 MOTOR FOR SALE MEAN?

Can n e one notify me what sort of gain in hp i should really b getting? Also so i'v looked at acquiring a mugen air filter an box to but there v pricey, dose n e 1 no if its well worth having one an what obtain I would get from it. Thanx AshtonWe’ll also think you agree to just how we use cookies and therefore are Alright with it as described wi