jay-corsa-gsi
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Registered: 4th Nov 09
Location: insperation from whittie
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i have corsa sri 1.4 8v 1994 with dtm exhaust from cat back wat would happen if i replaced da cat with a straight pipe mot 12mths btw
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Root
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Registered: 28th Dec 08
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from a 1.4 8v...don't expect to get massive performance gains, 5hp maximum I would say. IF anything. basically your car will sound a lot louder because harmful exhaust gases are being moved away from the engine quicker without gay filters in the cat).
sounds fun to me.
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jay-corsa-gsi
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Registered: 4th Nov 09
Location: insperation from whittie
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thanks mAte 
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jay-corsa-gsi
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 4th Nov 09
Location: insperation from whittie
User status: Offline
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thanks mAte
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jay-corsa-gsi
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 4th Nov 09
Location: insperation from whittie
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thanks mAte
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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you will need a cat come mot time as you got to have one by law(if the car was built after 1992) and your car wont pass the emissions test keep that in mind, i'd just stick with a removable de cat tbh
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
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I've got a decat pipe on the XE, and after speaking to my local friendly MOT tester he's happy to put it through - he did however mention that it's does next to fuck all to improve the power of NA cars.
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Ricky352
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Registered: 6th Apr 07
Location: Lisburn, N.I.
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Ive heard of people getting through MOT with a decat, but recently my old corsa failed due to emmisions since the decat was fitted. May not be related to the cat though, could just be another problem.
My car was made without a cat
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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if you have a dissy xe then you dont have to have a cat as normaly thy are pre 92 engines
a lot of decent mot testers will pass a corsa xe with a de cat as they cant be bothered going through and checking the engine code and finding out wether its a pre 92 or a post 92 engine.
if your car is made without a cat then it has different emmisions test to one that does i.e. they are alowed to have a higher reading than a cat'd car,
my old xe had as low emmisions as my 14xe with a cat
and if you read back on what you said fella you said tht your old corsa failed recently on emmisions after you fitted a de cat... means it had a cat dont it?
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jay-corsa-gsi
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Registered: 4th Nov 09
Location: insperation from whittie
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cheers lads
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Root
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Registered: 28th Dec 08
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it can fail on emissions due to not having a cat..
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