I have the TRD headers and exhaust. There's a little more "umf" there but not much. By the claims made by TRD I should have gained somewhere around 15+- hp mostly from the headers but who knows. I did it mostly so when I ever get a supercharger I'd be able to get all the crap out being forced in.
It was an expensive upgrade, since I went TRD, but you can definately go cheaper price wise and get the same performance gains I did.
It was an expensive upgrade, since I went TRD, but you can definately go cheaper price wise and get the same performance gains I did.