I have couple questions , I used search option of course but some links and threads dont work so ill just ask , it might helpful for future too. First of all , I want to find out , what headers can use for our 7g Galant, would Eclipse Header work or maybe some DC Headers, I just wanna make sure they're emission friendly. Second , can i put Evo fuel injectors in our Galants?? If yes would miles per gallon go critically down or would it make same mileage? I wanna make custom exhaust , and use 2.5" piping , I dont know if i should go bigger or 2.5" is good enough, Also I want to use M-N1 Muffler or M-Spec II Muffler. Another thing i plan is Short Ram Intake. I want to buy some intake off ebay and and then use that piping and put it together with Injen Air Filter. I think those are all mods I plan to do for now If you have other things i might mod please tell , other then that please give me some advices and answer my questions.