[JET]

The AP is used to get the car close to where it needs to be. It is usually used on cars with upgraded turbos. The JB4 then does the fine tuning and allows you to switch maps on the fly and it much easier to use ethanol on. The backend flash is specifically designed by the company that makes the JB4 to work with it.

The Cobb is a stepped core and you can get the same one on Ebay under the Trust brand (remember them from the 90's?!?) for $400. The stepped core does give more frontal area, but the flow path is horrible and they use a 5" core instead of 7" thick. The top part of the core is also trapped in an area with poor air flow to it. There has been a decent amount of data on the different ones and of the cheaper ones VRSF seems to be the way to go. The next ones that seem significantly better are $1k instead of $450. Didn't seem worth it to me.

So now for the body I ran the numbers on keeping this style body and putting a different hood on it. That would run about $1,500. Now I have to decent if it is worth $2,500 to get a little more aggressive front end and the ability to run sick wheels... It should also help handling because the AWD likes to push some, so the wider front track should help with that and also running wider wheels up front would help too.