I have 2 SC2's and I have put a AEM cold air kit on both with a cannon muffler, bosch platnium fusion plugs and run only 93 octane fuel. ( I am told it stops the computer from retarding the timing allowing costant power delivery.) I am wondering wut else I can bolt on for more power. I have herd bad things about chips and programmers for our cars. I figure I am putting out 135 - 140 H.P. now and would love to get just over 150. Any and ideas are welcomed help. Also please check out my pics on my profile and offer advice I my customizing. Thanks for any and all help.........

 

look into a SDA or Geo Storm throttle body and port match the intake manifold. wouldn't hurt to dyno it to see whats its actually making

 

1)lose the platinum plugs --- the ignition systems in the S cars are not designed for them. USe stock NGKs
2) doubt you're getting that much HP from a cold air intake + muffler swap with all the standard piping in between
3)there is no chip that actually works for S cars that I'm aware of
4) I've been told that S car engines burn 87 more efficiently than 93 -- not sure about the timing thing -- please name your source.....these engines don't really knock much on 87 so the timing shouldn't be retarding in the first place
5) i'd be interested in seeing a video of a dyno run with your current setup

 

Thanks for all the advice. I live in the middle of no where and I dont think there is a dyno for miles. I can say that there was at least a month in between all my bolt ons and I noticed a difference in power every time. ( Though nothing huge.) With the platniums I am hestitant because they really seemed to allow the car to run smother when I started using 93 octane. I can only go by how the cars feel. I drive a 140 miles a day combined travel for work and now get 39.9 mpg compared to 37.8 mpg before, so the car seems to like wut I have done. I will see wut I can do for a dyno. I did however race my sis who has a 02 mustang gt conv stock and only lost by a car and a quarter in a quarter mile race. I will get more info a nd get back at yall.

 

Get rid of the plugs, but NGK plugs from your nearest Saturn Parts Counter. Why from your nearest Saturn Parts Counter? So you get the correct NGK plug.