Originally Posted by Luigi
The cold air intake and either race or stealth exhaust setups will increase your hp output. i recommend getting your car tuned. Since it is automatic you have the option to adjust the shift points (selected rpms ranges). That basically tells the computer to shift at the new and most likely higher rpms shift points. I personally recommend the stealth setup. Its plenty loud. I cant even imagine how loud the race is. But I also have race headers with a high flow cat, so I'm not positive what leaving the stock exhaust manifold on (with both cats) and adding the exhaust setup will do for your sound levels (decibels).
I had both for a bit , with the fswerks "street" setup . It sounds great but knocking out the 2nd cat brought the db,s up a lil , well at least my mind says it did , lol