[Laguna Seca Blue]

JB4 is the best bang for your buck...if the bang you're referring to is the sound of your engine knocking??

Maybe I'm being overly cautious... I've never tuned any of my previous cars, but I'd rather spend a extra few hundred $ on a proper tune than risk wearing out my engine prematurely.

I'm very new here, but just out of curiosity, do people actually read these forums carefully? There are many knowledgeable people that have imparted loads of useful information. Surely, modifying your very expensive car should be done with some degree of caution. It's one thing if the modification is cheap, but quite another if it's interaction with your vehicle can cause very expensive damage. That's being penny-wise and pound-foolish.