AU XR8 11 - cat & muffler query

auxr · 29-09-2011, 11:07 PM

Currently running 2.5 inch stainless steel twin system and time to upgrade cats and mufflers - currently has new pacemaker headers fitted, auto 220 kw.

Cats - upgrading original Tickford cats to Hi Flo Metal cat 200 cpsc units

Mufflers - Flowmaster Super 440 x 2, retaining exiting muffler running to three inch twin tips.

Just after a bit of feedback from any one else that may have used this type of a set up.

Day-mow · 29-09-2011, 11:31 PM

where abouts are you from?
forum Sponsor Sureflow Exhaust are good for advice and quotes. he's in Sydney.

auxr · 29-09-2011, 11:34 PM

Thanks mate - unfortunately in Perth.

Day-mow · 29-09-2011, 11:46 PM

bugger for getting from him. but he's still good for advice. what was your reasoning for going for the 200 cell cats? im pretty sure 100's are legal.

auxr · 30-09-2011, 12:08 AM

Choosing 200 cell cats over 100 due to the Flowmaster super 440 mufffler choice, these mufflers are relatively loud to start off with - the 200cpsc are quieter than 100's, even though I may lose a couple of kw's by not running the 100's, I'm not really fazed.

Day-mow · 30-09-2011, 12:15 AM

fair enough.

MGM · 30-09-2011, 12:48 PM

I didn't realize the sound difference 100c to 200c made when I did mine, was so much louder with same mufflers, had to get a 18" hot dog put on, but is still loud, bit droney when driving slow, interested to hear how flow master mufflers go