Well like the title said im looking to throw my first engine mod on my 04 Rolla S. My friend says a CAI, but after lookign at the HP gains on an AEM intake (1-3) i kinda shyed away from the idea of investing in a $200ish mod with minimal gains. I was thinking of working on the exhaust first. Maybe getting Ceramic Headers and a catback exhaust.
Anyway im looking for some imput from you guys (and gals

) Let me know what you think.