Anyone done it? I've heard that it's a simple bolt on mod. , but I was wondering how envolved the process is.
Is it a do-it-yourself mod. or is there some re-fitting envolved?

Thanks

 

From what I've read it's pretty straight forward. The only tricky part is rebolting the TPS onto the new TB. You have to "reload" the spring in order to get proper voltage out of it. If you check past posts, look for anything that says adjusting TPS and you'll see what I'm talking about.
Also, if you're going larger you'll need to port the TB elbow the same size or else it's pretty much a useless deal.