Originally Posted by B16a2VTIguy
Orite heres my dilema, I've heard from a few ppl that a 4-1 header is best for my engine if i want more power after vtec, but 4-2-1 is better for before vtec is this true??? (my engine is a b16a2, and i have a full mongoose exhaust, de'cat and induction kit) I was perfectly happy 2 believe this untill a local tuner told me 4-2-1 was better power for after vtec, i dont know how good his tuning is though he has tuned my freinds 2003 type r civic (header,exhaust,hondata ecu, induction kit) and its still not as quick as id expect!! i wouldnt take my car there anyways!!!
thanx 4 any help
Can't tune hehe.. And No.. 4-2-1 is to make up your low end without that vtec.. if your goin to get a 4-1 header dont piss out, get a 2.5 exhust believe it or not making your engine breath better helps alot man.. it does..