Thanks for the replies! I do actually have the 5.3 v8 so it looks like they support it but I wasn't sure if anyone had any experience, with their actually tuning abilities and their customer service.
chaoskp wrote:Thanks for the replies! I do actually have the 5.3 v8 so it looks like they support it but I wasn't sure if anyone had any experience, with their actually tuning abilities and their customer service.
My last car was a Cobalt SS/SC, which I had tuned by Trifecta. They are really good about working with you and creating a custom tune that fits your modifications. They helped me reach 323HP/298TQ!!!