So, I'm new around here and to the solstice and have been doing lot's of research here and other forums. I'm the new owner of an '08 GXP with only 34k miles on her, 1 owner prior to me. Unfortunately, I bought this from a dealership, the original owner had traded it in.
So, I am looking at getting the basic trifecta tune after much research, but here's where my question comes in. So, I've read that stock(which I assumed it was), would run up to around 19 psi of boost and up to 23 - 27 with the new tune. Problem is, today I drove it and watched the boost build on several WOT runs. I hit 23 psi on a few of those runs...so my question is, is my car already tuned with a custom tune?? I don't want to pay for a tune if it already is, but I'd like to have the select a tune option as well. Any input is welcome!!
Thanks,
Jason