WHAT DOES HONDA B16B ENGINE FOR SALE MEAN?

Can n e just one inform me what sort of obtain in hp i really should b having? Also so i'v checked out obtaining a mugen air filter an box to but there v expensive, dose n e one no if its well worth acquiring 1 an what achieve i'd get from it. Thanx AshtonThe Honda B16A4 engine makes use of quite a few Superior systems to boost its general performa