Has anyone noticed a difference in performance with the high flow cats? Just like all of us, I'm looking for ANYTHING to give us a little more bottom end (without going to a V8) Also, how does the exhaust sound after putting them on? The sound of our stock FX35's,350z's are harmonically tuned to perfection, much like the tone of a 12 cylinder Ferrari or Countach. This tone is what attracted me to the FX35 in the first place. I don't want to lose it,just inhance it a little.
Is the $600 spent on cats a waste of $?
Is the $600 spent on cats a waste of $?