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High flow Cat??? 


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 Post subject: High flow Cat???
Posted: Sat Dec 11, 2010 4:39 pm 
Oompa Loompa

Age: 27

Posts: 48

Joined: 10th Jun 2009

Ride: 2001 AU Ford Falcon

Location: Perth
WA, Australia

Im just bout to install a set of pacies and am wondering if there Is there much point in getting a high flow cat in my I6 AU's exhaust system?......because ive heard that the stock cats flow plenty.....wot kind of gains would i expect?....aparantly not much at all(1kw if that) is wot ive heard. I already have cat back exhaust system. So any help would be apreciated..........



Guitar and Bass guitar lessons for all ages and skill levels in Perth. 0417090965

 Post subject: Re: High flow Cat???
Posted: Sun Dec 12, 2010 9:10 pm 
Getting Side Ways
User avatar

Age: 25

Posts: 493

Joined: 21st Sep 2010

Gallery: 3 images

Ride: BA XR6

Location: sydney
NSW, Australia

while your doing the system get the high flow cat, the standard cat isent restrictive at standard performance, once you start bumping up your performance, a high flow cat starts to become recommended and frees up more power. im getting a full system on my BA soon and a high flow 100cpi cat is about 130 bucks ontop of the cost of headers and catback, including fitment. now 100cpi cat is illegal but so is ANY modification to the standard cat which i believe is 400cpi so really 100cpi is only slightly more illegal then a 200cpi :P



Performance mods: typhoon + territory pipe with K&N filter, full exhaust, BPR generic tune, lowered, xr6t front brakes, territory rear brakes
Visual mods: 19" rim, lower grill mesh, oil pressure and vacuum gauges, engine bay lighting, foot well lights
some of my main mods

 Post subject: Re: High flow Cat???
Posted: Thu Dec 16, 2010 9:13 pm 
Fordmods Newbie

Age: 43

Posts: 8

Joined: 5th May 2010

Ride: AU Futura II

Location: Adelaide
SA, Australia

Standard cat on AU is pretty good but when i had mine changed to hi flow i saw the actual size difference between the standard cat vs 63mm and it was fairly noticeable. I had the whole system done at the same time so couldn't tell ya the actual difference it'd make going from yours. (except the price, which was $367 retail this year but i got it for $150 :) ).

But like winman says you might as well put it in if you're going to do other mods and if your budget can stretch. Also agree with uniacidz - it might need replacing anyway.
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