Vebbers Member 77 Member For: 16y 8m 1d Gender: Male Location: Blackburn, VIC Posted 21/07/08 09:42 AM Share Posted 21/07/08 09:42 AM Heyy all!!Once again, thanx for the help regarding the 'cheap' mods.I wanted to know what to get if all I want is a better sounding exhaust, no performance gain..would a 2.5" CATnack be suitable for a BF XR6? I beleive there is an emissions problem when changing the CAT, is it a problem when only changing the CATback? Ive ben quoted 450 for Difilippo 2.5" Catback system fully installed (1 yr warranty)thanx!vebbers Link to comment Share on other sites More sharing options...
PEZZA XR6 Member 52 Member For: 16y 8m 15d Gender: Male Location: Perth Posted 21/07/08 10:50 AM Share Posted 21/07/08 10:50 AM a 2.5" cat back wont affect the cat because the system is from the "cat-back" there is no need to change the cat, they are perfectly fine. you will still get a performance gain because you are increasing the flow. if your after a good note, the 2.5" catback would be good, but get a straight through muffler and this will sound better and sportier than a chambered muffler, and just keep the middle muffler. another variable to sound is the thickness of the steel, a thicker steel to me personally sounds better, doesnt sound cheap. also a set of pacemaker 4490 or 4495 extracters would be good and will improve efficiancy and power. Link to comment Share on other sites More sharing options...
PEZZA XR6 Member 52 Member For: 16y 8m 15d Gender: Male Location: Perth Posted 21/07/08 10:54 AM Share Posted 21/07/08 10:54 AM oh and stainless steel, it sounds alot better Link to comment Share on other sites More sharing options...
CJ_AK cj_ak Donating Members 5,077 Member For: 17y 7m 14d Gender: Male Location: Ropes Crossing Posted 21/07/08 11:13 AM Share Posted 21/07/08 11:13 AM You could go real cheap and just remove the centre muffler and do dual straight through Link to comment Share on other sites More sharing options...
PURVIE Sexy Member Donating Members 524 Member For: 18y 2m 3d Gender: Male Location: Berwick, VIC Posted 22/07/08 01:00 AM Share Posted 22/07/08 01:00 AM Hey mate, even buying a XR6T exhaust and running a pod filter makes the car sounds really good at idle, doesnt drone and sounds good when you put the foot down. Link to comment Share on other sites More sharing options...
Vebbers Member 77 Member For: 16y 8m 1d Gender: Male Location: Blackburn, VIC Posted 19/08/08 02:58 PM Author Share Posted 19/08/08 02:58 PM Hey all,I went to a few places around the eastern subs in Melbourne and got a few quotes:1) $780 for a Stainless steel Xforce 2.5" CatBack installed2) $656 for a Mild Steel Redback 2.5" installed3) $550 for a Mild Steel Difilippo 2.5" installedWhat seems the best and if people who have heard the difference which gives a "meaner" more deeper note?thanx in advance!Vebbers Link to comment Share on other sites More sharing options...
twisty1 Member 65 Member For: 16y 5m 26d Posted 22/08/08 04:32 AM Share Posted 22/08/08 04:32 AM Personally, I'd go 2.5, for the above reasons. Link to comment Share on other sites More sharing options...
boo81 Member 3 Member For: 17y 2d Posted 28/08/08 04:56 AM Share Posted 28/08/08 04:56 AM Hey all,I went to a few places around the eastern subs in Melbourne and got a few quotes:1) $780 for a Stainless steel Xforce 2.5" CatBack installed2) $656 for a Mild Steel Redback 2.5" installed3) $550 for a Mild Steel Difilippo 2.5" installedWhat seems the best and if people who have heard the difference which gives a "meaner" more deeper note?thanx in advance!VebbersStainless steel options are best. I have heard good things about the Difilippo systems, so if the budget can stretch get that in the SS setup Link to comment Share on other sites More sharing options...
Azzman460 Azzman Member 223 Member For: 16y 6m 22d Gender: Male Location: Melbourne Posted 29/08/08 06:04 AM Share Posted 29/08/08 06:04 AM G'day mate. You can run into problems when changing the CAT on the BF's as they have a downstream O2 Sensor bit I've heard a few people just get a flash tune and they can get rid of the fault. I have a BFMKII N/A and I just took it to exhaust brothers and for $150 they cut out both the mufflers from the cat back and I got them to put a hotdog in there to act as a resonator and create less drone, so I'm left with a straight through system, and its loud! Link to comment Share on other sites More sharing options...
TheGreenDog Inactive Members 1 Member For: 16y 7m 21d Posted 23/10/08 03:34 AM Share Posted 23/10/08 03:34 AM I removed my rear muffler and welded a tip on for $150.00Punches out a nice tune Link to comment Share on other sites More sharing options...
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