D13 HPD 95 Posted January 3, 2014 Share Posted January 3, 2014 I was thinking, if i get a decat manifold, with a new cat back exhaust system but half way down the center pipe cut it into two and remove a bit to put an aftermarket 200 cell cat convertor would this be road legal and pass an mot? Quote Link to comment Share on other sites More sharing options...
jamesm182 Posted January 3, 2014 Share Posted January 3, 2014 I would guess as long as you have a cat it wouldn't matter where it was fitted but I could be wrong? Quote Link to comment Share on other sites More sharing options...
D13 HPD 95 Posted January 3, 2014 Author Share Posted January 3, 2014 thats what i was thinking the company making the 200 cell cat say with only their cat in the system it will still pass an mot. just not to sure? its about £550 all together dont want to spend that and then it doesnt work or fails the mot Quote Link to comment Share on other sites More sharing options...
Mike77 Posted January 3, 2014 Share Posted January 3, 2014 Shouldn't fail, as long as it looks standard under the car,,,, example,, a lot of people simply remove the cat,,,, cut open along the welds and remove the inner and weld back up again. So in theory, no cat, but it's still there. Quote Link to comment Share on other sites More sharing options...
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