Anto Posted March 29, 2013 Share Posted March 29, 2013 Hi All, So I currently have a bog standard N/A auto and am looking for some advice on exhaust options please. In the (very!) long term, the plan is to go NA/T but for now I want to get something that will be a little "fruitier" without being offensive (obviously no performance gain is expected!). So do I go cat back system, 1st and/or 2nd de-cat or all the above...? Ideally I want to do something that will work fine with the current stock set-up and will still be suitable for use with a single set up. Suggestions please! Cheers! Quote Link to comment Share on other sites More sharing options...
welshbuddy Posted March 29, 2013 Share Posted March 29, 2013 Straight pipe all way, keep your cats. Sorted Quote Link to comment Share on other sites More sharing options...
Anto Posted March 30, 2013 Author Share Posted March 30, 2013 Any other input folks....? Quote Link to comment Share on other sites More sharing options...
Konrad Posted March 30, 2013 Share Posted March 30, 2013 Decat your NA completely, does not do any harm and in my subjective opinion car is more responsive to throttle It will be noisy tho, so be warned! Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted March 31, 2013 Share Posted March 31, 2013 I do an NA specific exhaust, available in single box and twin box. I also have decat pipes available too, if you do decat it I would recommend the twin box exhaust to keep noise levels down. All in stock if needed. Quote Link to comment Share on other sites More sharing options...
Anto Posted April 2, 2013 Author Share Posted April 2, 2013 I also have decat pipes available too, if you do decat it I would recommend the twin box exhaust to keep noise levels down. Thanks Paul, Which of the 2 cats is the most restrictive? In other words, if I wanted to try and still pass emission tests at NCT (our MOT) time, could I remove just one? If so, which one should I take out? Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted April 2, 2013 Share Posted April 2, 2013 Thanks Paul, Which of the 2 cats is the most restrictive? In other words, if I wanted to try and still pass emission tests at NCT (our MOT) time, could I remove just one? If so, which one should I take out? I would remove both and then put the 2nd cat back in for the MOT, it passes in the UK like that anyway. Quote Link to comment Share on other sites More sharing options...
Anto Posted April 3, 2013 Author Share Posted April 3, 2013 I will need to do this in stages, so if I start with just a first de-cat and leave in the second cat and stock exhaust will it be very noisy? Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted April 3, 2013 Share Posted April 3, 2013 I will need to do this in stages, so if I start with just a first de-cat and leave in the second cat and stock exhaust will it be very noisy? Shouldn't be no, the stock exhaust is very quiet. Quote Link to comment Share on other sites More sharing options...
Anto Posted April 3, 2013 Author Share Posted April 3, 2013 Shouldn't be no, the stock exhaust is very quiet. I sense an order coming your way soon then...... Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted April 3, 2013 Share Posted April 3, 2013 I sense an order coming your way soon then...... Ok let me know. Quote Link to comment Share on other sites More sharing options...
Noz Posted April 3, 2013 Share Posted April 3, 2013 the 3" single box setup if the best IMO. my whifbitz system did sound nice with one cat in. mine eventually passed emissions without any cats. for some reason, not all NA's will produce failures with emissions with cat's removed. fitment was perfect with the setup too. Quote Link to comment Share on other sites More sharing options...
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