jordak Member 1,226 Member For: 20y 10m Posted 12/05/05 01:51 AM Share Posted 12/05/05 01:51 AM Guys I'm looking for some much needed advice...........please!Prior to upgrading injectors (currently CT edit) want to free up the exhaust in the cheapest possible way. Other than the centre muffler mod (hotdogs) the system is stock.Put simply will installing a free flow cat make a noticeable difference or do I need to go for the full 3" upgrade, or something similar. Given the difference that a hypothetical cat "gutting" can make I was hoping a cat replacement would do the trick.Has anyone gone down this track and if so which cat and how much.BTW only looking to go to around the 270rwkw.Cheers Steve Link to comment Share on other sites More sharing options...
Paradoxx Colossal Member Member 5,049 Member For: 20y 7m 16d Gender: Male Location: Perth, WA Posted 12/05/05 02:52 AM Share Posted 12/05/05 02:52 AM In theory the cat is the main restriction, the back pressure is provided by the turbo itself so the difference between a 2.5 inch and a 3 inch is minimal wrt flow. The big difference is in the noise made. Being that the cat HAS to be there it would probably be wise to go bigger, or maybe even twin? (can this be done?) Link to comment Share on other sites More sharing options...
jordak Member 1,226 Member For: 20y 10m Posted 15/05/05 09:18 AM Author Share Posted 15/05/05 09:18 AM Just read in the latest Motor Mag that a chip / edit and bigger hi flow cat is the way to go as far as bang for buck mods are concerned. Can anyone confirm the "cat" part of the equation from experience? Link to comment Share on other sites More sharing options...
saleen Big Gun Donating Members 4,170 Member For: 22y 5m 30d Gender: Male Location: NSW Posted 15/05/05 09:28 AM Share Posted 15/05/05 09:28 AM CAPA Have a hi-flow cat on their website for $295. Does anybody no anything about this particular cat in terms of performance and quality? Link to comment Share on other sites More sharing options...
Buf-Phoon loitering with intent Lifetime Members 13,318 Member For: 21y 7m 22d Gender: Male Location: Zombie Birdhouse Posted 15/05/05 09:34 AM Share Posted 15/05/05 09:34 AM $4.00 Broomstick from Bunnings....... priceless You wont even need mastercard Link to comment Share on other sites More sharing options...
Blown BA In Your Face Member 6,195 Member For: 22y 1m 1d Gender: Male Location: Peninsula Posted 15/05/05 09:40 AM Share Posted 15/05/05 09:40 AM WhiteTee said: $4.00 Broomstick from Bunnings....... priceless You wont even need mastercard <{POST_SNAPBACK}>Broomstick you say...............how bout JBs cape Link to comment Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 21y 11m 15d Gender: Male Location: Victoria Posted 15/05/05 11:29 AM Share Posted 15/05/05 11:29 AM For some reason there never seems to be much forthcoming when the cat threads pop up... I wonder why? Link to comment Share on other sites More sharing options...
NYOPA Team Blueprint Donating Members 312 Member For: 21y 4m 23d Gender: Male Location: Sydney Posted 15/05/05 11:56 AM Share Posted 15/05/05 11:56 AM Yes cats never seem to get much press.......sodoes anyone here use the CAPA cat and if so what do you think?it's going to be my next mod. cheersDavid Link to comment Share on other sites More sharing options...
fordboy1981 Donating Members 2,075 Member For: 22y 2m 23d Gender: Male Location: Sydney, NSW Posted 15/05/05 02:40 PM Share Posted 15/05/05 02:40 PM meow.Dave. Link to comment Share on other sites More sharing options...
F6 UTE - Track Bound EVO III - Member 3,367 Member For: 20y 3m 25d Gender: Male Location: Strapped in and holding on Posted 15/05/05 02:52 PM Share Posted 15/05/05 02:52 PM I was looking at fitting the 4" metal substrate jobby from SMB. Someone here has one I'm sure. looks good, and being 4" and metal, I feel should do the job. They do a 4" dumper too..Pricey though.." Secret Mens Business " Pix are exacto as from "intune motorsport" so I would guess they are connected in some way ( guessing??? ) Link to comment Share on other sites More sharing options...
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