I didnt go to these guys for a race car. I took my high end luxury vehicle to them as I couldn't afford to replace the cats immediately but still needed my ride. so I had to do race pipes. Nobody else would put them on as it's a large fine but I told them my story & they were aware of my situation. It was cool of them to help there. It bothered me though that they claim they're professionals & do this often & didnt know that based off of my miles, it's state law that if my cats fail as soon as they did, the dealer must replace. They did great work but they're lack of knowledge regarding motor vehicle laws could of cost them a ten thousand dollar fine I was told & cost me over a thousand dollars in catalytic converters. I called & let them know all of this, but yea, no help. No empathy. Poor customer service. Shit, one cat was good, they could of made their money back easy & kept those. 3 bolts to put those race pipes on. Moral of the story, don't go cheap & do your research. My opinion, great work but a little less fast & furious & a little more helpful & customer oriented. read more