Underdrive Pully seems like another good investment. Any sugestions on who I should go with? For a 08 GT five speed stock. Thanks

 

I will give you a little advice, read through tacobills post and use the search before making new posts....many topics (gears, UDPs, exhaust, CAI/tunes) are discussed to absolute death...I am sure you can easily find answers this way. If you still have specific questions about certain things then feel free to ask.

 

Congrats on your new Car Ian, welcome to the Forum. Yes underdrive pullies are a good mod for the money, unless you plan to get a Supercharger. I see that you're new here, so if you look at the top of the page you'll see the word "search", click on that and type in what your looking for. If that fails, like Matt said, Feel free to ask on the Forum.

 

I went with Brenspeeds, electric water pump and pulley combo.