 For all things automotive repair and maintenance, Tom Turner knows where to go. Performance Prep is one of the region's top auto repair shops. Very, very good at solving complex car problems. Got the problem solved and rectified and can make a bulletproof repair on it. And I think when I got done with it, it's better than factory. Also great for all your routine maintenance needs. Performance Prep guarantees it's worked for 12 months, parts and labor. AAA approved. Performance Prep.