Well how big of a difference does it make? Isaw the that tanabe makes a concept g model which is a turboback exhaust for my 99 gst, Is thata pretty good one to get, or would i be better off just getting something like the apexi or greddy?

 

apexi or greddy IMO is the Best Ever...they put lots of money in to design them...so u know u are getting your money worth