I was looking at the underneath side of my Tc and I noticed that the stock exhaust piping actually looks fairly large. Does anyone know the size of the stock piping? Also, what is the size of the TRD exhaust system piping?

 

the stock pipe on the tC is 2.125 Hope this helps :D

 

Thanks man, I wasnt shure if the Magna 'Header-back' LOL Piping was bigger..I know it was 2.25..Not that much bigger, but its bigger..

 

For those of us with tighter pocket books I am wondering if it worth it to change the exhaust from the cat back. Seems like changing the piping may not give you that much.