hawlass Silver Donating Members 1,161 Member For: 17y 5m 3d Gender: Male Location: left right out Posted 25/04/14 08:49 AM Share Posted 25/04/14 08:49 AM (edited) I went to the expence of having a 'cat delete' straight pipe made , long story short , it was untunable.The exhaust was too free flowing ( didnt think it was possible) to maintain control of the internal wastegate. A external gate' may have been tunable but I just put the Xforce cat back in .Grab a replacement cat from xforce and tune the biarch! Edited 25/04/14 08:50 AM by hawlass Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467554 Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 9m 11d Gender: Male Posted 25/04/14 09:24 AM Share Posted 25/04/14 09:24 AM A thread is nothing without pictures, right? Oh jesus Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467559 Share on other sites More sharing options...
Phoon508 Member 188 Member For: 12y 4m 4d Posted 25/04/14 10:33 AM Author Share Posted 25/04/14 10:33 AM My exact words when I peeped down the hole. Ah well, the exhaust didn't cost me anything so I can't complain Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467572 Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 9m 11d Gender: Male Posted 25/04/14 10:50 AM Share Posted 25/04/14 10:50 AM winning Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467574 Share on other sites More sharing options...
Phoon508 Member 188 Member For: 12y 4m 4d Posted 25/04/14 11:09 AM Author Share Posted 25/04/14 11:09 AM yeah I have the same cat in the garage, no restrictor in mine.Looking to sell it mate? Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467578 Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 10m 16d Gender: Male Location: @ my laptop Posted 25/04/14 01:45 PM Share Posted 25/04/14 01:45 PM nothing is untuneable, we have tuned cars with no cats before 2 Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467610 Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 8m 7d Gender: Male Location: Adelaide Posted 25/04/14 01:50 PM Share Posted 25/04/14 01:50 PM no cat is the way to go;) Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467611 Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 5m 16d Gender: Male Location: Perth Posted 25/04/14 02:27 PM Share Posted 25/04/14 02:27 PM Do you have the flapper mod to the turbo. You could punch the core and remove that plate. Or buy a new Xforce cat. If the intake and exhaust are really free flowing , boost control with the std size flapper can be an issue. Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467617 Share on other sites More sharing options...
Phoon508 Member 188 Member For: 12y 4m 4d Posted 26/04/14 02:23 AM Author Share Posted 26/04/14 02:23 AM Do you have the flapper mod to the turbo. You could punch the core and remove that plate. Or buy a new Xforce cat. If the intake and exhaust are really free flowing , boost control with the std size flapper can be an issue.yeah I'll be doing the flapper modnothing is untuneable, we have tuned cars with no cats before Mick, you'll be the one doing the tuning and flapper mod, so what would your opinion be?I honestly don't mind buying a new one, but if you believe I'll be able to get the same or better power out of a gutted cat, then I might as well go down that path and put the saved money towards my valve springs Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467653 Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 10m 16d Gender: Male Location: @ my laptop Posted 26/04/14 03:22 AM Share Posted 26/04/14 03:22 AM it will depend on what power and boost etc, but a gutted cat will work marginally better than a good high flow cat, but if you ever need a cat for some reason then you will need to get the car retuned Link to comment https://www.fordxr6turbo.com/forum/topic/88080-high-flow-cat-restrictor/page/2/#findComment-1467664 Share on other sites More sharing options...
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