After my car put down numbers lower than would be expected, he tried to say I don't know what turbo's I got in my car and gave me a dyno sheet w/o AFR, just two figures at idle and WOT... Also the new shifter bracket sold by Spddracer he screwed with no cushion, so the rattle was horrible. I had to redo it myself. Sorry, but that's not what I wanted to pay for. Never went back and took my car to aliaZ above, I'm very satisfied with his work.