[christianchevell]

Being in California you should be looking at A oil catch can, CAI intake any thing that is CARB certified..... A good LPW rear diff cover with BMR toes and Trailing arms and such and basically what you can get away with as its smog city EPA land down there. TO build power there you will have to go shorty headers which have minimal gain to stock cats or if lucky high flow cats with out tuning or if tuned it will have to be sniffed... and you of course void your warranty with a tune and with a cam is the way to get to your goal only... it takes money more than you may want to pay to go inside the engine with a mild cam to get more to your goal and be CARB legal , as in porting heads etc... and the tuning with a more radical cam makes the car idle more in the 950 rpm range..... also not exactly CARB friendly. So your pretty much stuck looking for what you can do..... G.M>. Performance parts may be the only real easy options for the engine that are CARB approved? Good luck, And if you research most 17/8 " headers with a merge spike are close in power gains long tube and do require usually turning of CEL ( check engine light) for the slowed response of the O2 sensors up front along with almost any cam requiring the mixture of air to fuel being richer thus NOT CARB friendly along with the higher idle from the gain in power. There are numerous threads on CAI's and the most useful is on a sticky I believe. You could go with VMAX stock ported throttle body for one and one of the Vitesse throttle controllers both of which would improve the performance feel of the car.