Damn guy those are cheap in price. Maybe I should opt out of the SLP's. You're running 0 knock retard on them. What else do you have done to help keep knock retard down? I know every car is different but you get some good guidelines from talking to others that have already been there done that. Do you have any pictures of your engine bay?
I myself just about **** my pants, when I won the bid on ebay for my GTP. I looked at my wife and said holy smokes nobody else bid babe. She was really happy it's a 2dr like she wanted and had super low miles for a 1998. She really doesn't drive it often as I thought she would. She likes her Mazda6, it's got the 220hp engine.
Also what type of downpipe do you run with the headers or is it totally eliminated? I want to get the cat converter off the car, I live in Ohio and we have no emissions. All they do is choke the car anyways.