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cat converters are aftermarket ones worth it over stock
Posted: Mon Dec 22, 2008 11:13 pm
by Benedict_XIII
was reading a few magazines and these catco and how good they are metal cat bla bla bla and was wondering if there worth the steel there forged ifrom anyone put one on and noticed a difference performance wise
Posted: Tue Dec 23, 2008 7:44 am
by dstocks
I put a high flow cat on recently (2 weeks ago) and am happy to say that yes it makes a difference

I put a magnaflow on mine.
Posted: Tue Dec 23, 2008 10:02 am
by I8A4RE
of course it makes a big difference but thats only if you upgrade the rest of the exhaust. Theres no point upgrading the cat while still keeping the rest of the restrictive factory exhaust
Posted: Tue Dec 23, 2008 4:54 pm
by aza013
I8A4RE wrote: Theres no point upgrading the cat while still keeping the rest of the restrictive factory exhaust
some times

I still have the factory exhaust on apart from the back muffler and when I put the high flow cat on I get a +3kws and when the track cat is on I get a + 10kws

atws
so you still can get a result.
Re: cat converters are aftermarket ones worth it over stock
Posted: Tue Dec 23, 2008 5:53 pm
by I8A4RE
Benedict_XIII wrote: noticed a difference performance wise
I get a +3kws
You can notice 3kw difference? ........BS
And what i said was there's no ppoint unless you remove the rest of the restrictive factory exhaust, the rear muffler is the most restrictive bar the cat

Posted: Tue Dec 23, 2008 6:28 pm
by dstocks
No, disagree. When I swapped out the cat, I still had the factory exhaust (apart fropm the extractors). I definitely noticed a difference even then. Even better when I swapped out the rest though. Having said that, my factory setup was already 2 and a half inches (I think that was an aero or version R option)
Re: cat converters are aftermarket ones worth it over stock
Posted: Tue Dec 23, 2008 8:33 pm
by aza013
I8A4RE wrote:Benedict_XIII wrote: noticed a difference performance wise
I get a +3kws
You can notice 3kw difference? ........BS
And what i said was there's no ppoint unless you remove the rest of the restrictive factory exhaust, the rear muffler is the most restrictive bar the cat

I too did not say I could notice the 3kws, this was found on the dyno. standard cat test drop it out high flow in and retest

Posted: Wed Dec 24, 2008 11:39 am
by Therapy02
what's the standard error on dyno's though? probably need to repeat the tests a lot more than once to say it is a 3kw increase
not that this matters at all to the op's question

Posted: Wed Dec 24, 2008 11:57 am
by nikhan
WEll...get a sports exhaust, hight flow cat, rpw extractors, CAI topped up with a e-manage will reap some gains on the car. 2.5 inch piping will do. If thats not enough, take out the spare wheel add in a carbon fibre boot and bonnet, use lightweight flywheel and lighter rims will make the car faster. Lolz...and if tat is still not enough, add in the happy gas
Posted: Wed Dec 24, 2008 2:20 pm
by I8A4RE
nikhan wrote:WEll...get a sports exhaust, hight flow cat, rpw extractors, CAI topped up with a e-manage will reap some gains on the car. 2.5 inch piping will do. If thats not enough, take out the spare wheel add in a carbon fibre boot and bonnet, use lightweight flywheel and lighter rims will make the car faster. Lolz...and if tat is still not enough, add in the happy gas
Lol, nice

Posted: Wed Dec 24, 2008 3:30 pm
by nvr2low
and if that isint enough go 6a13tt
Posted: Thu Dec 25, 2008 8:35 am
by Bennoz
Yep, get one. As mentioned, upping the size of the rear section to 2.5 inch with mandrel bending & having some nice free flowing resonators & mufflers will compliment the gains.
Posted: Thu Dec 25, 2008 6:24 pm
by vipfto
screw the cat punch it out or just put in straight pipe you wont be disapointed
but yeah really get one will any of benefit if youare going to freeflow the rest

Posted: Fri Dec 26, 2008 1:01 am
by xSlurpee
punching out a cat difficult? ... i already know the consequences for doing it though
still willing to do it just to make my car abit quicker
Posted: Fri Dec 26, 2008 9:14 am
by vipfto
xSlurpee wrote:punching out a cat difficult? ... i already know the consequences for doing it though
still willing to do it just to make my car abit quicker
actually easy just remove cat put in vice and get bar and hammer and bash all the crap out, just do it ALL or you will have that rotten egg smell which is a dead give away that you have done it, just remember only for track use
Normal disclaimer applies
Posted: Sat Dec 27, 2008 11:03 am
by rock_it
A little off topic, but not wanting to start a new one...
but can you bore out the 2.0L FTO engine ... To be the same size as the V6 in the Magna .. Is it 3.2 or something like that

Posted: Sat Dec 27, 2008 11:18 am
by Benedict_XIII
ok ok after reading and analysing the data ive come to a comculsion..................race cat.................................who has a spare cat converter lying around if its the cheapest and most power gains straight through all the way
can the cops pick up on it
Posted: Sat Dec 27, 2008 2:02 pm
by RallyMad
Benedict_XIII wrote:ok ok after reading and analysing the data ive come to a comculsion..................race cat.................................who has a spare cat converter lying around if its the cheapest and most power gains straight through all the way
can the cops pick up on it
Cops can mate. If you cruise around on thrusday nights or other nights you may have seen defect stations. They can stick a probe up your exhaust and test your emmisions at these stations. It will tell them if you have no cat. Then you wear a massive fine because it's a EPA regulation and not just a vehicle law.
My tip, just get a decent high flow cat. Go and talk to an exhaust shop.
Posted: Sat Dec 27, 2008 4:21 pm
by yano
rock_it wrote:A little off topic, but not wanting to start a new one...
but can you bore out the 2.0L FTO engine ... To be the same size as the V6 in the Magna .. Is it 3.2 or something like that

Magna's came in a 3l and a 3.5l v6... I've got no idea if the 6a12 can be bored out though... I'm kinda curious myself...
Posted: Sat Dec 27, 2008 4:22 pm
by yano
damn Bens big penis..."bor.ed out" not jacking off to *~delightful!~* porn