2003 UK STI, How many cats?
18 July 2011, 07:50 PM
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2003 UK STI, How many cats?
Lads how many cats are in the 2003 UK Sti? and where they located.
Have a decat downpipe on car and straight through system, something telling me there is a cat in up pipe?
Have a decat downpipe on car and straight through system, something telling me there is a cat in up pipe?
18 July 2011, 08:00 PM
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2 cats, downpipe and centre section unless its been PPP'd then dp is a sports cat and the centre section has been removed.
Will add that if your car is completely decatted and not remapped I would be seriously worried
Tony
Will add that if your car is completely decatted and not remapped I would be seriously worried
Tony
18 July 2011, 08:24 PM
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Yea its mapped mate.
So Sti has one in down pipe and 1 in centre section, If i leave decat downpipe on and stick back on a cat centre section, will that cat on its own pass emissions test?
Also.. my mate has his RB320 System off his car at moment and i can get loan of it for test, was think of putting his centre and back box on, would it fit mine?
So Sti has one in down pipe and 1 in centre section, If i leave decat downpipe on and stick back on a cat centre section, will that cat on its own pass emissions test?
Also.. my mate has his RB320 System off his car at moment and i can get loan of it for test, was think of putting his centre and back box on, would it fit mine?
18 July 2011, 08:26 PM
#5
Nope.......a single cat in the rear will not pass emissions. To get it past a MOT (kosher) it needs a cat in the downpipe, either a sports cat which has better flow or the OEM cat.
Even then it really does need to be up to operating temp (hot).
Shaun
Even then it really does need to be up to operating temp (hot).
Shaun
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