I got a 99 eclipse gs and am looking to learn more about it and want to up my hp. any ideas shoot me a message thanks!
-mike

 

well first off you can add a intake, headers, cat-back, and a new intake manifold. that alone will make your car breathe better and inturn add atleast 25 HP. adding NO2 will give you a great HP gain....now other than that u can add new cam's, cam gears.....pretty much rebuilding the engine whether the whole thing or jsut the top end will unlock HP but it will cost you a pretty penny.

 

oh yea mike, i forgot to mention another mod that you can do.....up grade your fuel sytem, regulator, pump, and injectors...other than that im sure someone else can help you out or correct me if im wrong on something