hulse Posted September 9, 2006 Share Posted September 9, 2006 Hi all I have a na supe and was thinking of a decat as my mate has a stanless steel exaust shop and was wondering if it would be worth it, has anyone done on a na supe and noticed any difference after it has been done. (performance, sound) is there more than 1 cat on the supe if so should i remove both, does it cause any problems apart from MOT. Thanks John Quote Link to comment Share on other sites More sharing options...
Nic Posted September 9, 2006 Share Posted September 9, 2006 Removing both cats will give you an a extra few hp and make the engine more responsive. It will make it sound a LOT louder. The NA Supra has 2 cats, try to get 2 separate decat pipes made, this way you can easily refit the second cat come MOT time. Quote Link to comment Share on other sites More sharing options...
hulse Posted September 9, 2006 Author Share Posted September 9, 2006 Removing both cats will give you an a extra few hp and make the engine more responsive. It will make it sound a LOT louder. The NA Supra has 2 cats, try to get 2 separate decat pipes made, this way you can easily refit the second cat come MOT time. cheers nic Time to ask my mate nicely Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 9, 2006 Share Posted September 9, 2006 do you only need the second cat in during MOT? Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 9, 2006 Share Posted September 9, 2006 do you only need the second cat in during MOT? varies from car to car, usually you can get away with just one cat in....and the 2nd cat is the easiest to change/replace. Quote Link to comment Share on other sites More sharing options...
squiffy Posted September 9, 2006 Share Posted September 9, 2006 i have a n/a with a double de-cat and super dragger 2 cat back. seemed to have a better pick up at speed. fookin loud!!!!!! Quote Link to comment Share on other sites More sharing options...
Dave Posted September 9, 2006 Share Posted September 9, 2006 ive got no cats in my n/a and although the sound increased slightly pick up is better from 3k revs Quote Link to comment Share on other sites More sharing options...
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