XtRmn8 570Nm @1800rpm Donating Members 2,441 Member For: 21y 9m 3d Gender: Male Location: Perth, WA Posted 08/09/13 09:58 AM Share Posted 08/09/13 09:58 AM Hi all,Keeping the stock GT3576R is there much benefit in going full exhaust versus just replacing the CAT with a bolt a proven in item?I am thinking a full xforce exhaust, 4" dump, 100cpi cat and 3.5" mild steel cat back.Mods are: PW Stage 1 cooler kit, Herrod intake, ID1000 injectors plus either cat only or full exhaust.What are the negatives of going full exhaust? Will boost control be an issue?The benefit of a full exhaust appears to be a bucket load more torque which is worth more to me then a high kw number.Cheers Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/ Share on other sites More sharing options...
MurdoK Donating Members 719 Member For: 15y 3d Gender: Male Location: Perth,WA Posted 08/09/13 10:53 AM Share Posted 08/09/13 10:53 AM have been told a full exhaust can cause boost control issues. turbo mods can help this? cant really see any negative to running a full exhaust other then money 1 Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422603 Share on other sites More sharing options...
_Velocity_ Bronze Donating Members 2,768 Member For: 14y 1m 30d Gender: Male Location: Victoria Posted 08/09/13 01:22 PM Share Posted 08/09/13 01:22 PM Best to speak to your tuner and see what they prefer to do before spending your cash. Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422667 Share on other sites More sharing options...
Z2TT Member 714 Member For: 13y 29d Posted 08/09/13 02:34 PM Share Posted 08/09/13 02:34 PM (edited) Every tuner is going to say a different thing and sometimes you don't know where the confusion ends.Consensus is with the FG just upgrade the cat and the rest of the exhaust is fine from my research.3" factory exhaust and Big mufflers allow it to flow a lot, it's a great exhaust.With my Late 2011 FG (Euro4), my factory cat just with the restricter ported out, was able to make 300rwkw and about 318rwkw on a dyno at 14 and 15 PSIOn the other hand, if doing a full Dump Cat and exhaust on a FG will cause overboost issues, it must mean it's helping the flow and allow the turbo to push more air out.Thing to ask is for the price you pay for an exhaust, how much difference will it make. Edited 08/09/13 02:39 PM by Z2TT Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422676 Share on other sites More sharing options...
Pazzo Donating Members 11,132 Member For: 14y 8m 2d Gender: Male Posted 08/09/13 08:20 PM Share Posted 08/09/13 08:20 PM No point if keeping small turbo... Just do hiflow cat and be done.. Full exhaust will need turbo ported and no use doing that since the stock dump and hiflow cat and stock cat back will do the job. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422691 Share on other sites More sharing options...
Doddo22 Member 135 Member For: 12y 3m 28d Gender: Male Location: Newcastle Posted 08/09/13 11:02 PM Share Posted 08/09/13 11:02 PM is this the same for ba/bf? Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422721 Share on other sites More sharing options...
_Velocity_ Bronze Donating Members 2,768 Member For: 14y 1m 30d Gender: Male Location: Victoria Posted 09/09/13 05:57 AM Share Posted 09/09/13 05:57 AM It depends on how much power you want to make. The B series turbos can be pushed further than 400rw with modifications whereas the FG XR6T turbos run out off puff at lower power figures hence why people tend to upgrade to a GTX instead. Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422884 Share on other sites More sharing options...
AdamIan69 Bronze Donating Members 401 Member For: 12y 2m 3d Gender: Male Location: WA Posted 09/09/13 06:29 AM Share Posted 09/09/13 06:29 AM (edited) Check out a dyno graph posted by murdoc in "Fg 428Rwks" thread. It shows you the difference it made to his car when he put the exhaust on. Edited 09/09/13 06:31 AM by AdamIan69 Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422898 Share on other sites More sharing options...
XtRmn8 570Nm @1800rpm Donating Members 2,441 Member For: 21y 9m 3d Gender: Male Location: Perth, WA Posted 09/09/13 06:44 AM Author Share Posted 09/09/13 06:44 AM I am well aware of the GT3576r limits.Having seen a number of tuned FG with oem turbo in place, the ones fitted with a full exhaust make a bucket load torque. MurdoK's car is a great example. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1422908 Share on other sites More sharing options...
jules_1972 Member 39 Member For: 15y 6m 19d Gender: Male Posted 09/09/13 11:29 AM Share Posted 09/09/13 11:29 AM On 09/09/2013 at 6:44 AM, XtRmn8 said: I am well aware of the GT3576r limits.Having seen a number of tuned FG with oem turbo in place, the ones fitted with a full exhaust make a bucket load torque. MurdoK's car is a great example.Answered your own question. Link to comment https://www.fordxr6turbo.com/forum/topic/86189-fg-bolt-in-cat-or-full-exforce-exhaust/#findComment-1423103 Share on other sites More sharing options...
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