I have dual 40 series delta flows out back no main cat no res. IT IS LOUD. Sounds good when it is warmed up and not resonating. If you go with this system and dont like loud cars keep you cat and res if you like loud cars gut it all! BTW not ricey at all sound s pretty mean (enough to scar off most V8's)

Silver 99 SVT
It's Stock.
Would I LIE?

My cars the Silver one