Alright, so my 99 GTP has a simple PVC intake and SSAC headers... like 90% of modded gps. So I fall into a very average demographic as far as modding goes. Now that I have the flow of the headers, naturally I'm looking at a pulley drop and a tune. I'm thinking that a 3800 performance (DHP) PCM with a 3.4" pulley is my best option. I want virtually zero knock (not just talking about KR). Do you think this would be a good combination?

I live in the Grand Rapids area and I'm open to having someone reputable tune the car. I'm also open to other mail-order tunes as well.

And although I'm not giving it serious consideration, I could also purchase HPT. The cost is high, but if I buy an aeroforce to check for KR as well as a boxed tune, I would probably have been better off just to buy a tuning suite to begin with.

Ideally, I'd just get a reputable tune in a box, not have to worry about KR, throw on a pulley, and go. I'm not concerned if I'm 10hp short of where I could be, I just want a safe tune to facilitate a pulley drop safely.