If anyone is in the carolinas/virginia area i highly reccommend this shop. Jeff does awsome tuning work on everything that he does. He's also doing some pretty sick cam packages right now. On my 2wd TBSS with efans and homemade CAI I went from 318 rwhp to 351 rwhp with his tune. With just those 2 mods he spent about 3 hours tuning and I had 5 dyno pulls. The tune ran me $300 flat rate (doesn't charge extra for dyno time) and updates are free. Check him out if you can.