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His feedback % is very high....very surprising. For $120.00 this chip is not going to do anything that the GM engineers couldn't think of. Another $120.00 rip-off. Just my .02.
It's proven fact these chips don't do anything for a stock engine. If it's modified, maybe. I would have to pass. A nice K&N filter and new air filter lid would probably do more.
If you want or need a chip burned I would highly recomend Ion Sulton. http://www.madz28.com/9293.php He is very inexpensive and does great work. I have had him do 4 ECM's for me over the years and everyone was exactly what I asked for. He has been tunng for me for three years so he is not some fly by night outfit that will be gone next week. Now with all that said it is a mail order tune and a dyno tune is always your best bet but at $400-500 a pop the dyno can get real expensive real fast.