I recently started thinking about getting an intake and an exhaust for my car just because i want some more power. I got a 2.2 and was wondering how much those add ons would make a difference in terms of horsepower and feel of the ride. I had wanted to get an h22 but dont got the money right now. Maybe next year.

 

Most people say the bolt ons dont make that much difference for the 4 cyl. Ive seen 20 hp max if you get cold air, headers, and catback. Intake and catback probably add around 5hp each. I just have intake so far and its definatly not 10-15hp as they sometimes advertise, but i feel some difference and sounds nice.