Hey Mate,
If you going to go the full
tbe on your 06 your going to need a new
ECU as well.
I have a magna flow which I put on before I had the
ECU and had alot of problems.
I would recommend ringing RT and see what they reccomend mate. I had my exhaust done at APC but they really know nothing about Rex's and couldn't solve my problems, but did sell me a quality system that has an awesome sound. Cost me $2200.