I agree with spoolin i dont care about this argueing people will go with who they believe, However jjspec will soon hopefully have a dyno and jimmy has already made 450whp 400trq with a STOCK D16 with pistons, rods, headstuds and a little ass t3t4. He went 9's when others on this site was wanting 10's. Ive never met someone as nice and helpful as him and he will surely be tuning both my cars and my friends. This man has over 800 passes down the track, has a family and still gets on the track where he belongs to have fun unlike other tuners who just make a living outta tuning or extra money..he even manages to take his time to go to the track with you and help you. Now i like go-autoworks as well sam is a magician himself but ill have better support with jjspec and there closer which is while ill be letting him tune my car instead of go-autoworks. Parts wise im with go-autoworks all the way they have some of the best parts availiable hands down and there work is FLAWLESS!!