Quote Originally Posted by jdmjames
With a Tc your going to run into alot of codes being thrown. Toyota has not really made the Tc as a mod friendly car. Most things you do will cause you to fail emissions. Sorry.
idk where you get your info from but I/E never threw any codes on my car unless you install the intake wrong and dont keep the MAF sensor clean you will not throw a code. The only true cat back is made by Tsudo as far as I know and it's like $230 shipped. do those first and you wont be disappointed.