a search of the previous posts on this topic will reveal a 20 hp and tq gain to the floor by a tune from Speed Innovation ... which by all accounts is a staggering gain on a naturally aspirated engine from a retune ... although you have the luxury of being near some of these companies you should be careful as i hear the gas is rather poor in octane in CA with 91 being max most places ... so do your research on available gas near you before the tune as some are done for 93 minimum.