I am planning or should I say wanting a little more power and sound from my GT. I already have the VMP stage 2 running 10 lbs, but with all of the stock exhaust . I know I am going to add an offroad cat delete H pipe, but what kind of gains should I expect. I know in NA form around 18, but will I see higher gains than 18 HP. I know my boost will take a hit, but I'm trying to decide if I really want to spend the dough on LT's and do both. I was also wanting to add LCA's and UCA along with dark stars, but LT's would consume some of those funds.