FAST-XR EVIL T Member 259 Member For: 15y 11m 19d Gender: Male Location: Liverpool NSW Posted 16/10/09 01:22 AM Share Posted 16/10/09 01:22 AM keep it, if you can make the same power at lower boost level its a good thing Link to comment Share on other sites More sharing options...
Fryer of Tyres Boost Addict Member 198 Member For: 16y 4m 16d Gender: Male Location: Belcompton Posted 16/10/09 01:46 AM Share Posted 16/10/09 01:46 AM (edited) Where did you buy the cat from (Hurricane?) or was it supplied by the exhaust shop ? Just asking b'cos I am interested in getting a 4.5" 100 cell cat and removing the centre muffler from mine. Edited 16/10/09 01:47 AM by Fryer of Tyres Link to comment Share on other sites More sharing options...
MercuryXr6Turbo Member 361 Member For: 16y 1m 30d Gender: Male Location: Perth, WA Posted 16/10/09 01:57 AM Share Posted 16/10/09 01:57 AM Cheers Fast-XR... u make a good point... my BA runs a full BF exhaust (which differs from the BA) so just looking at replacing the cat.Fryer... I'm in Perth but bought this cat from the sole distributor over east as u can't get this brand here that easily without a decent markup... oh and the brand is Ballistic not Hurricane. If I decide to go the 200cell option will let u know mate.Cheers guys! Link to comment Share on other sites More sharing options...
XF Falcon <put funny sh*t here> Member 3,365 Member For: 18y 19d Gender: Male Location: Perth, NOR Posted 16/10/09 02:44 AM Share Posted 16/10/09 02:44 AM (edited) Got my exhaust on, sounds excellent. I don't think the 100CPI cat is too loud, mind you there are two 4" mufflers on the system as well. Edited 16/10/09 02:48 AM by XF Falcon Link to comment Share on other sites More sharing options...
mjadeb1984 Señor Member Donating Members 391 Member For: 16y 19d Gender: Male Location: Adelaide Posted 16/10/09 03:03 AM Share Posted 16/10/09 03:03 AM I just got rid of my cat completely and it didnt change the note at all. so I cant imagine a 100cpi would either. Link to comment Share on other sites More sharing options...
Fryer of Tyres Boost Addict Member 198 Member For: 16y 4m 16d Gender: Male Location: Belcompton Posted 17/10/09 12:10 PM Share Posted 17/10/09 12:10 PM What is the standard flange size for the cat - is it 2.25" or 2.5"s,and is it the same at both ends ?? Link to comment Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 1m 2d Gender: Male Location: Far north queensland Posted 03/11/09 09:20 AM Share Posted 03/11/09 09:20 AM 3" I think Link to comment Share on other sites More sharing options...
turbo uterus Member 13 Member For: 15y 2m 14d Posted 03/12/09 09:30 AM Share Posted 03/12/09 09:30 AM changing the cat wont make it louder bud I got 1 on my ute but removing the mufflers will. Link to comment Share on other sites More sharing options...
spike47 Donating Members 33 Member For: 15y 7m 3d Gender: Male Location: 2145 Posted 03/12/09 11:46 AM Share Posted 03/12/09 11:46 AM I changed my cat out for a 100 cpi job and for reasons unknown it definately got a bit louder and sounded alot better under acceleration. Link to comment Share on other sites More sharing options...
troytroy Member 6 Member For: 16y 2m 11d Posted 03/01/10 10:52 AM Share Posted 03/01/10 10:52 AM (edited) Places that say that "you don't need a 100cpsi cat" are usually ones that don't stock them.......and or don't know crap about their product or performance requirements!!!The word "NEED" in the converstaion is absolutely laughable. Mods are't about need, they're about want. By changing the Cat you are WANTING more power. 100cpsi is simply better than 200cpsi. Flow is god - especially in Turbo cars. If you're going to the effort and expense of changing out a cat -do it right the first time and get a 100cpsi."100cpsi cat will void warranty and EPA test" Well, no sh*t Sherlock. A 200cpsi cat wont either or a 300cpsi or pretty well any high flow aftermarket cat. If in the 1 in 300,000 chance that you get pulled over by Mr EPA, I don't think they're going to give a flying crap what cpsi cat you have in, as anything aftermarket looking will get you a trip to the pits anyway.Will there be a massive difference between a 200cpsi or a 100cpsi - not really. But if the price is similar - it's a no brainer. Just make sure it's a metal core and not a ceramic core. Edited 03/01/10 10:53 AM by troytroy Link to comment Share on other sites More sharing options...
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