I've decided to start doing a few things to my DD. I'm going to put a set of 3.73 gears in. Is it ok to get the cheap ones (motive performance) or should I spend the coin on FRPP gears? Also I have an intake and exhaust, would it be beneficial to get an SCT and some tunes? Will I notice any power gains from the SCT, or should I skip that all together? Thanks.