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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » De-Cat or Not?


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Author De-Cat or Not?
Matt.H
Member
Registered: 12th Mar 03
User status: Offline
23rd Jan 04 at 16:39   View User's Profile U2U Member Reply With Quote
I've gotta 1.4 sport and was thinkin about gettin a de-cat pipe. Reason is i got coilovers on and it scrapes real bad. If i do change it will i notice any power increases?
LukeGSi
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Registered: 9th Dec 03
User status: Offline
23rd Jan 04 at 16:40   View User's Profile U2U Member Reply With Quote
on a 1.4 u probably wont notice much difference if any!! if u do get a de-cat pipe make sure u can put the cat back on fairly easy for MOT time!!
Matt.H
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Registered: 12th Mar 03
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23rd Jan 04 at 16:43   View User's Profile U2U Member Reply With Quote
i had a quick look a while ago and looks like i have to cut the cat out or is there a break in the exhaust somwhere?
Flyincorsa
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Registered: 28th Oct 03
Location: Stockport
User status: Offline
   23rd Jan 04 at 16:57   View User's Profile U2U Member Reply With Quote
Ive got a custom made de cat pipe you do feel the difference well worth doing.
Wolf In Welsh Clothing
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Registered: 31st Mar 03
Location: North Wales...... Cooper S on order
User status: Offline
23rd Jan 04 at 16:57   View User's Profile U2U Member Reply With Quote
You have to cut it if you replace the system or cat as it's only one piece from the factory.
You should gain 3bhp.
Matt.H
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Registered: 12th Mar 03
User status: Offline
23rd Jan 04 at 16:58   View User's Profile U2U Member Reply With Quote
how do u do ure own mate?
broster
Premium Member

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Registered: 6th Dec 02
Location: Drives: E39
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23rd Jan 04 at 16:59   View Garage View User's Profile U2U Member Reply With Quote
may aswell buy one from piper or sumink, dont cost loads! and as saaid above, will gain u about 3bhp! iv got one sat here!
Flyincorsa
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Registered: 28th Oct 03
Location: Stockport
User status: Offline
   23rd Jan 04 at 17:48   View User's Profile U2U Member Reply With Quote
I am a pipe welder so I have got the facilities to make my own.
I made two flanges one to come off the manifold and one to connect to the mid box pipe and welded a inch and a quarter pipe to it hey presto 1 custom made pipe. oh and bent pipe to suite.
uprated
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Registered: 1st Sep 03
Location: York
User status: Offline
23rd Jan 04 at 21:03   View User's Profile U2U Member Reply With Quote
just make friends with an MOT tester
sfxer
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Registered: 23rd Aug 00
Location: devon, england
User status: Offline
23rd Jan 04 at 21:08   View User's Profile U2U Member Reply With Quote
i have a decat pipe on my 1.6 sport, a powerflow one with full powerflow system after the cat,

they welded some flanges onto my cat after cutting it out, i can put that back in easy enough for mot,

i think it invalidates your insurance driving without one??? anyone else know for sure??

my car sounds crap with the cat in, much better without also it certainly seems to rev a little better, not much noticable change in power but it picks up a bit faster

[Edited on 23-01-2004 by sfxer]
mav
Member
Registered: 19th Jun 01
Location: Scotland
User status: Offline
24th Jan 04 at 00:00   View User's Profile U2U Member Reply With Quote
I have a magnex decat on my 1.6 sport.
revs better
sounds better
and a tad more power.

Nah don't think it will invalidate insurance..they will never check that.
Never even put it back on for mot.....but I know a man...........

passed emissions last year without cat...but failed this year..

 
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