I was wondering if anyone has upgrated a 07 mazda 3 5 door ( or 06 ) with the mazdaspeed Sport Tuned Exhaust and the mazdaspeed CAI? If so pics of the exhaust on a 5 door would be great. I was just wondering how everything works together for you on the car. How much of a difference can you feel? HP increase 10? 15? 20? I am going to purchase either the mazdaspeed parts or go with a magnaflow exhaust and a Injen CAI. Called the mazda dealer and got a great deal if i buy both parts from them it's going to cost me 750$ excluding labor. Let me know I would like to get my zoom on asap.

Thanks


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I've got the Mazdaspeed exhaust (no CAI) on my 3i 2.0L 4-door. Throttle response was improved as was roll on acceleration (butt dyno) No idea what kind of hp gains, but it seemed noticeable. I did have a test CAI for 1 day and it also seemed to improve a little over just the exhaust, but I didn't really have time to try it out (just took some data then switched it back to stock)