Check out my build, on pages 4 and 5, I have some video clips of my Top Speed Axle Backs. I love them and see no need to do anything further, the sound is epic and sounds just as good as any of the others that cost double or even triple the price. I had Top Speed test pipes before and they sound like shiit, too raspy, so I added these and put my stock cats back on and haven't looked back since.
My Nismo Updated