I just purchased a engine from board bro NTD, and he reccomended to me the only thing I might want to do, is get some long tube headers I dont know much about after market stuff, but I read that it would give you 20-25 additional horse power. If I dont have a superchager installed will you still feel a difference with the LTH? Also I read it changes the sound on your exhaust. I love the way my MM sounds already, so my question is would it be a totally different sound with headers? Thanks