does anybody have a header/highflow cat/catback exhaust on their NA car?? if so did you notice an increase in top end? does it still idle the same? any info would be appreciated.

also, does anybody make one that will bolt right in place of our stock cat?
__________________________
...just my $.02
95 GS

....and I use a generic HF Cat, my engine internals are far from stock, so my idle isn't normal. Actually it sucks balls( up and down from 900-1100), but I don't care - it sounds like a little V8 with my CAI and mild headwork.

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

I've got a 2.5" all the way back save the HotShot headers. And IceMan intake. Idle moved up about 100RPM (850)with the stock internals. I would figure that with a set of cams and porting that the idle will go up slightly higher than that. Hoping that's not the case, but we'll have to wait and see.

SEA97GS - 15.785@88.20MPH
NW.DSM.ORG
HotShot Headers-Custom 2.5" exhaust-MSD 8.5mm plug wires-NGK Plugs-Nitto NT555R Drag Radials on RX-7 wheels-Eibach ProKit Springs-Tokico shocks-front upper STB