ohh without the vtec it will just sound a bit softer on the highway, and i was refering to my car not yours man lol, i can honestly say that this Exhaust is close to perfect, not that loud stupid shit that will get your ass an ticket over, this just sounds nice as hell, i did the full cat, with an comptech CAT, and still passed smog, so look into it, not cheap though, dont know if you want an exhaust for like $300-400. if so pass on this one.