Excelsior Motorsports is an excellent shop for getting performance modifications done on corvettes (or any car with LS engines). I have a 2007 Z06 and have been going to Kushan for many years now. I started out small with just intake, exhaust, tune, etc. I just recently went 200.6 mph at the Mojave Magnum with the help of Kushan! I race mostly on road courses but always wanted to hit 200 at the Mojave event. The mods he has done so far include cats, headers, ported heads, solid lifters, solid cam, intake, stage 3 oil system, bigger radiator, coilovers, poly bushings, 4 corner balance, track alignment, dyno tune and more. Now I am pushing over 600hp to the wheels without a turbo, supercharger or nitrous. I have never been let down by the quality of his work. He has spent many extra hours on my car that were unexpected and he always makes sure you get the most out of your setup. He will follow up with you after the work is done, even come to the track with you if he can to make sure it all runs smoothly. He races his own Z06 and knows what is right for the car. If you want it done right, give him a call and he will work with you.
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