Not to rain on the parade but I live in Houston and did a lot of research about tuners in the area. I would NOT take it Tran. Mark Gust was the only person who could reliable tune a 300 in this area and he's incognito right now. Get your car the hell outta Houston there is no one here that can do the job in my opinion.......contact SPL Parts and see if they can recommend someone in Austin area or like everyone said take it to SZ. Quality people are getting harder to come by these days so get used to taking trips.