I just recently bought a 98 eclipse RS (non-turbo). I want to tune it, and I want a lot of horses under the hood. How can I get this done?

 

well you need something to tune.. for example if you get a header tuning it will add a few more HP if you get a turbo tuning it will get you a good amount of HP. and you need some sort of tuneing devise such as an SAFC or something but tune a N\A car wont do to much

 

not really much you can do to rs to to gain horse power. i had a 1997 rs with intake headers exhaust and i was on 60 Shots of nitrous and it was still slow. so i just went out and baught myself a TSI. you will have to spend alot of money to gain horsepower on that car man. theres a post when you enter called how to build a track terror 420a try reading that. maybe that will help

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WElcome to the forum and good luck with everything.