I am well tempted, but the Nismo helps in that respect, the sound from that is none to shabby as it is.
I am thinking i will need sports CAT's to go with the 5Zigen tho, i want it LOUD.
I must admit, I always fancied the Kinetix Cats, not too sure whatthe knock on effect might be though. I keep seeing references to these lowering back pressure, an dtherfore torque, then I get puzzled becoz the whole point of my True Dual exhaust is to go Hi-Flow ( preusmably therefore lowering back pressure)
Are you running an APS TT? If so then decats and true dual will only help you... if you havnt got that and are running N/A then its decats that have an effect, HI-flows are fine (well on mine they are anyway!)