Macca86 Member 2 Member For: 12y 1m 1d Posted 10/06/13 04:56 AM Share Posted 10/06/13 04:56 AM Hi everyone. I have a 2005 XR6T ute and I was looking to get just a cat-back exhaust put on but the exhaust place I went to has suggested I instead get a 4" dump pipe, new cat, and then cat back as well installed. I was under the impression if I was to fit a dump pipe and new cat it would require having a retune done. A quick search around on here and I have found a range of different comments (although I did find most mention needing a tune due to overboost?). The exhaust place is assuring me he fits this set up to BA's all the time and has had no problems. Is anyone on here running the same exhaust and hasnt had a tune done? Or can anyone please confirm 100% I will or wont need a tune? Ute is 100% stock atm and I wont be looking at really doing any other powergain mods so if Im going to need a tune Id rather just stick with a cat-back as I dont want to be spending money on a tune as well. Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/ Share on other sites More sharing options...
freeze_dk I am dissatisfied with my current employment situation Donating Members 8,610 Member For: 18y 7m 15d Gender: Male Posted 10/06/13 05:35 AM Share Posted 10/06/13 05:35 AM Retune 100% if turbo back, not to sure on cat back. Don't think it will affect it but don't quote me Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1397028 Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 17y 5m 18d Gender: Male Location: Probably above atmospheric pressure Posted 10/06/13 05:41 AM Share Posted 10/06/13 05:41 AM Have read often that cat back is fine, no tune needed. Changing dump and/or cat is retune time as it overboosts. 2 Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1397030 Share on other sites More sharing options...
Macca86 Member 2 Member For: 12y 1m 1d Posted 14/06/13 02:03 AM Author Share Posted 14/06/13 02:03 AM Cool thanks for confirming that for me guys! Might just stick with the cat back for now then until I save up and can get a dump/cat/tune done all at the same time Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1398115 Share on other sites More sharing options...
jas98 Member 1,046 Member For: 12y 9m 20d Gender: Male Location: Maryborough Qld Posted 14/06/13 02:57 PM Share Posted 14/06/13 02:57 PM cat back system can and will most ikly cause overboost, maybe not straight away but on a cold night it will. herd about it a fair few times Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1398374 Share on other sites More sharing options...
Pazzo Donating Members 11,132 Member For: 14y 6m 21d Gender: Male Posted 14/06/13 08:05 PM Share Posted 14/06/13 08:05 PM Don't think a cat back on a stock car will cause over boost as the restriction is the cat on a stock car.. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1398381 Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 17y 1m 23d Gender: Male Location: Vic Posted 14/06/13 10:59 PM Share Posted 14/06/13 10:59 PM Just chop the centre muffler or get a bolt in muffler replacement. Wella. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1398399 Share on other sites More sharing options...
Cameron02 Member 164 Member For: 12y 5m 3d Posted 15/06/13 03:47 AM Share Posted 15/06/13 03:47 AM On 14/06/2013 at 8:05 PM, WOGPOT said: Don't think a cat back on a stock car will cause over boost as the restriction is the cat on a stock car..Yes, I believe this is correct.Since the cat is the main restriction, anything you do past or ahead of it (in regards to air flow) should make almost no difference to performance. Once the cat is replaced then any other air flow mods should start to have an effect on performance. On 14/06/2013 at 10:59 PM, Henz said: Just chop the centre muffler or get a bolt in muffler replacement. Wella.My ba had a removed centre muffler when I bought it. It was 90dba and 93bda on deceleration. I replaced the muffler back to stock and it was 81dba. So it definitely makes a difference to sound and might be the best value option until you can afford to do the rest. If you buy a "centre pipe" from someone make sure its for the Ute as its different to the sedan. Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1398481 Share on other sites More sharing options...
jas98 Member 1,046 Member For: 12y 9m 20d Gender: Male Location: Maryborough Qld Posted 28/06/13 04:35 PM Share Posted 28/06/13 04:35 PM ask tuners, cat back system can cause overboost........even if cat is stock! Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1402343 Share on other sites More sharing options...
jas98 Member 1,046 Member For: 12y 9m 20d Gender: Male Location: Maryborough Qld Posted 28/06/13 04:36 PM Share Posted 28/06/13 04:36 PM also reson why when cutting standard center muffler out and welding striaght pipes on nd not getting overboost, is because the center muffler is a straight through muffler anyway...the rear one is the restricted one, (in stock form) Link to comment https://www.fordxr6turbo.com/forum/topic/85233-question-re-turbo-back-exhaust/#findComment-1402344 Share on other sites More sharing options...
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