Is there any advantage to buying a GM stage 2 over an aftermarket company such as OTTP? Has there been any problems with OTTP and why is it so much cheaper than the GM performance parts package? I want to get a stage 2 setup but Im not sure which direction to take. Thanks

 

Well alot of factors come into play,such as warranty,power and existing mods you already have.I can tell you from dealings with Josh and Sean from OTTP that you will get a good reliable product.