pac23 Member 103 Member For: 13y 1m 15d Gender: Male Location: Sydney Posted 10/10/12 11:49 AM Share Posted 10/10/12 11:49 AM Hi all,I think this question has been asked before but not the same way..I took my fg xr6 turbo in for a tune and it was laggy and struggling to make over 12 psi. I have a rapid v1.0 kit fitted, 60lb injectors and hi-flow cat.I am quite sure that cat or actuator is shagged so I have decided to do the flapper mod, 12psi actuator and change my intake the battery side rapid kit.With these mods will I be restricted if I just replace my cat with another 100cpi cat??Will I gain much from upgrading to a 4inch dump and cat combo?I don't want a full exhaust or lag...Thanks again Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/ Share on other sites More sharing options...
rbjet Skid Machine Donating Members 1,640 Member For: 14y 17d Gender: Male Posted 11/10/12 01:41 AM Share Posted 11/10/12 01:41 AM Don't worry about the dump. It's not needed. Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1307817 Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 17y 2m 21d Gender: Male Location: Vic Posted 11/10/12 02:04 AM Share Posted 11/10/12 02:04 AM The dump will help it come on boost quicker and make more boost also. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1307826 Share on other sites More sharing options...
rbjet Skid Machine Donating Members 1,640 Member For: 14y 17d Gender: Male Posted 11/10/12 02:10 AM Share Posted 11/10/12 02:10 AM Henz is right but there must be another reason why your car feels lagy. FG's don't really have much lag at all. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1307830 Share on other sites More sharing options...
pac23 Member 103 Member For: 13y 1m 15d Gender: Male Location: Sydney Posted 11/10/12 06:52 AM Author Share Posted 11/10/12 06:52 AM I am pretty sure it's a shagged cat but I am not sure if its worth going a 4 inch over straight replacement cat since I have a stock cat back exhaust Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1307936 Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 17y 2m 21d Gender: Male Location: Vic Posted 11/10/12 06:54 AM Share Posted 11/10/12 06:54 AM Stock catback is good for 380rwkw. Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1307937 Share on other sites More sharing options...
pac23 Member 103 Member For: 13y 1m 15d Gender: Male Location: Sydney Posted 11/10/12 11:57 AM Author Share Posted 11/10/12 11:57 AM What is the limitation of the standard 3 inch dump with 100cpi cat?Cheers Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1308089 Share on other sites More sharing options...
bjc Donating Members 2,823 Member For: 21y 9m 6d Gender: Male Location: Townsville Posted 11/10/12 12:26 PM Share Posted 11/10/12 12:26 PM (edited) For the price buy a Cat only mate, the small turbo is the restriction...Also you dont have a leak in the intake system somewhere do you? Edited 11/10/12 12:28 PM by bjc Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1308094 Share on other sites More sharing options...
pac23 Member 103 Member For: 13y 1m 15d Gender: Male Location: Sydney Posted 12/10/12 06:56 AM Author Share Posted 12/10/12 06:56 AM No the intake system was smoke tested an was all fine. So it's exhaust side. Yeh can get a magnaflow cat for $150 and $150 to install but dump and cat will cost $1100 think I might leave it. Ill be happy with anything over 300. I just want it to come on fast.. Link to comment https://www.fordxr6turbo.com/forum/topic/82335-4inch-dump-and-cat-or-just-the-cat/#findComment-1308359 Share on other sites More sharing options...
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