Decat
10-16-2010, 02:21 AM
#11
To sum it up.
Pro's: Slight bhp increase (around 2BHP@fly on a stock exhaust, seriously!), weight loss (~8KG's), can reduce drone on some after-market exhausts, only noise difference is a slight rasp on a stock exhaust at 4k rpm.
Con's: Almost certainly wont pass a legitimate MOT (so you'll have to take it off and replace with the CAT come MOT time), smells bad, a putt putting noise is present on idle - no biggie really. You need a decat with a CEL fix built in.
I swapped to a berks HFC for my SC
because of the above, if I was N/A I'd maybe keep the decat for maximum potential power.
AS pointed about above, the stock CAT is a HFC just not as good as a berks.
HTH
Pro's: Slight bhp increase (around 2BHP@fly on a stock exhaust, seriously!), weight loss (~8KG's), can reduce drone on some after-market exhausts, only noise difference is a slight rasp on a stock exhaust at 4k rpm.
Con's: Almost certainly wont pass a legitimate MOT (so you'll have to take it off and replace with the CAT come MOT time), smells bad, a putt putting noise is present on idle - no biggie really. You need a decat with a CEL fix built in.
I swapped to a berks HFC for my SC
because of the above, if I was N/A I'd maybe keep the decat for maximum potential power.AS pointed about above, the stock CAT is a HFC just not as good as a berks.
HTH
10-16-2010, 03:09 PM
#12
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I swapped mine with a T1R 6mm resonated test pipe to match my 63mm exhaust. With a resonator instead of a cat, it is just as quiet but with a more aggressive, poppier sound. I have been pulled over several times since (without a ticket) in California and the cop has never looked under the car. If he did, he would just see a canister that looks a lot like a cat.
10-17-2010, 08:37 AM
#14
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my solution was the HFC with the OEM heatshield on - so you'll have no TP smell, no smoke and the OEM look
read here:
https://www.s2ki.com/forums/index.php?showt...&#entry19130161
read here:
https://www.s2ki.com/forums/index.php?showt...&#entry19130161
10-17-2010, 08:34 PM
#15
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Originally Posted by MAD828,Oct 16 2010, 03:15 PM
No cat also leaves black residue on your rear bumper from the fumes.
Ive had mine for over 2 years now and I have not encountered this yet; plus I daily drive my car year round!
10-18-2010, 02:21 AM
#16
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Originally Posted by Irvatron,Oct 16 2010, 11:21 AM
Con's: Almost certainly wont pass a legitimate MOT (so you'll have to take it off and replace with the CAT come MOT time), smells bad, a putt putting noise is present on idle - no biggie really. You need a decat with a CEL fix built in.
Do they need a sensor to plug into the decat..??
10-18-2010, 07:59 AM
#17
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Originally Posted by EVAN&MONICA,Oct 17 2010, 11:34 PM
Ive had mine for over 2 years now and I have not encountered this yet; plus I daily drive my car year round!
Mine also doesnt smell near as bad as people made it on here. I don't hardly ever notice it. The only thing I noticed when I switched to a test pipe was that my exhaust tips would get a yellow film on them after a week or two, but I can easily polish it off.
10-18-2010, 11:36 PM
#18
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Originally Posted by Kermdaddy,Oct 15 2010, 12:12 PM
The S2000 already has a hiflow cat. It flows better than most OEM cats.
10-19-2010, 03:55 AM
#20
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Originally Posted by jonner,Oct 19 2010, 03:23 AM
People are mentioning a lot to do with them being smelly...
Can anybody shed some light..???
Can anybody shed some light..???
personally, I find it pleasant.
