Bazzagt4 Posted January 10, 2009 Share Posted January 10, 2009 Hi Folks, When I picked up my Supra back last april I asked the seller if the removed 2nd cat could be left in the boot so come MOT time I could put it back on, Alas I run out of time and couldnt get the cat fitted for my MOT, so put it through anyway and was pleasently suprised to hear it has Passed straight through. It would seem there is no need to keep this cat pipe now. Has anyone else managed to pass with 1 cat removed??? Regards Quote Link to comment Share on other sites More sharing options...
Stevo Posted January 10, 2009 Share Posted January 10, 2009 Mine passes with both removed. Quote Link to comment Share on other sites More sharing options...
Supra-Brett Posted January 10, 2009 Share Posted January 10, 2009 If its a J-spec then it will pass anytime no matter what you have done to the engine. The DVLA dont have emmissions data for pre 2000 cars with cats so the test centres run the emmisions test based on non CAT cars which means the limits used to fail are massive (3.5% i think, compared to 0.1% with a CAT) Therefore i recon you could run massive power and never ever fail on emmissions with an older j-spec. Quote Link to comment Share on other sites More sharing options...
Bazzagt4 Posted January 10, 2009 Author Share Posted January 10, 2009 (edited) WOW, thats interesting. I have had a few ST205 GT4's in the past that all needed a cat to pass the MOT. The ST185 I had was ok as it was pre 93 but the 1996 car which is the same year as my Supra needed one to pass. So do you think my car would pass with the 1st cat removed aswell?? Thanks for your replies Edited January 10, 2009 by Bazzagt4 Bad spelling (see edit history) Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted January 10, 2009 Share Posted January 10, 2009 If its a J-spec then it will pass anytime no matter what you have done to the engine. The DVLA dont have emmissions data for pre 2000 cars with cats so the test centres run the emmisions test based on non CAT cars which means the limits used to fail are massive (3.5% i think, compared to 0.1% with a CAT) Therefore i recon you could run massive power and never ever fail on emmissions with an older j-spec. Are you an MOT tester ? or did someone tell you that? Quote Link to comment Share on other sites More sharing options...
Pig Posted January 10, 2009 Share Posted January 10, 2009 Isnt it pre K reg where there are no recored limits in the uk??? Quote Link to comment Share on other sites More sharing options...
AndrewOW Posted January 10, 2009 Share Posted January 10, 2009 If its a J-spec then it will pass anytime no matter what you have done to the engine. The DVLA dont have emmissions data for pre 2000 cars with cats so the test centres run the emmisions test based on non CAT cars which means the limits used to fail are massive (3.5% i think, compared to 0.1% with a CAT) Therefore i recon you could run massive power and never ever fail on emmissions with an older j-spec. That's not true, actually, as my local 'friendly' MOT tester said I really should have the CATs (at least one) in because they do have the relevant data on most imports now. Don't rely on it. Quote Link to comment Share on other sites More sharing options...
Beefyblx Posted January 10, 2009 Share Posted January 10, 2009 My mates a mot tester i'll ask him about this..... Quote Link to comment Share on other sites More sharing options...
L33 Posted January 10, 2009 Share Posted January 10, 2009 mine is a k reg but wil soon be single turbo so cuz of the custom exhaust it cant have cats? i didnt think of MOT? whats the outcome? Quote Link to comment Share on other sites More sharing options...
garethr Posted January 10, 2009 Share Posted January 10, 2009 My '95 Aristo always gets a cat test. Quote Link to comment Share on other sites More sharing options...
paul mac Posted January 10, 2009 Share Posted January 10, 2009 i have always had to put one cat back in for mot as told by my mot tester Quote Link to comment Share on other sites More sharing options...
merckx Posted January 10, 2009 Share Posted January 10, 2009 I always fit both cats just incase as the test results aren't that far away from the limits imposed. Quote Link to comment Share on other sites More sharing options...
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