wile e coyote Posted February 12, 2012 Share Posted February 12, 2012 Hi guys my brother has an na auto with nurspec back box Now is there any gains if he was to decat ? I know you need some back preasure on the na Quote Link to comment Share on other sites More sharing options...
SupraDan24 Posted February 12, 2012 Share Posted February 12, 2012 Some people have reported it drives better after a decat, but i imagine its mostly physcological. It may make give him a little bit more torque possibly. As its an NA, it will make the car pretty loud though. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 12, 2012 Share Posted February 12, 2012 Back pressure is a myth - THIS LINK explains it better than I can. Removing the cats will make the car feel a little more responsive and a LOT louder. Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted February 12, 2012 Share Posted February 12, 2012 i only felt any gain when i fitted the manifold.with the nurspec and no cats he will sound louder than i used to.I also had to fit that other box to try and quiten it. Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted February 12, 2012 Share Posted February 12, 2012 1st decat or a manifold that removes the first cat is the only one worth doing although it didn't stop me doing both. Quote Link to comment Share on other sites More sharing options...
Westy Posted February 12, 2012 Share Posted February 12, 2012 No idea about the difference in performance/feel...never driven it with any cats fitted! Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted February 12, 2012 Share Posted February 12, 2012 The NA is horrifyingly loud with no cats. Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 12, 2012 Share Posted February 12, 2012 Has the search button broke Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted February 12, 2012 Author Share Posted February 12, 2012 Lol did try the search button but not got the answers I wanted Thanks guys Quote Link to comment Share on other sites More sharing options...
Slam Posted February 13, 2012 Share Posted February 13, 2012 Just got to look at this, i am also running NO center box's,to go with the Nurspec tail. Quote Link to comment Share on other sites More sharing options...
Slam Posted February 13, 2012 Share Posted February 13, 2012 i only felt any gain when i fitted the manifold.with the nurspec and no cats he will sound louder than i used to.I also had to fit that other box to try and quiten it. Off topic OLD man Do you still share the same birthday as me still...Cuz a pixi came to me today to say how OLD you realy are.I new-it you lied. Heard how loud you back end is,smells aswell. You still got your manifold? gess you have with the plug. Quote Link to comment Share on other sites More sharing options...
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