88sam88 Posted February 10, 2014 Share Posted February 10, 2014 Hi , Anyone know what size the exhaust bolts are and if they're the same size all the way till the y pipe bolts? Thanks ppl Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted February 10, 2014 Share Posted February 10, 2014 The standard system runs studs on the Y pipe and rear silencer flange, is it an aftermarket system that you are going to fit? Quote Link to comment Share on other sites More sharing options...
88sam88 Posted February 11, 2014 Author Share Posted February 11, 2014 The standard system runs studs on the Y pipe and rear silencer flange, is it an aftermarket system that you are going to fit? Hi and yep it'll be an after market system cat bk I'd be fitting Quote Link to comment Share on other sites More sharing options...
eatonm90 Posted February 11, 2014 Share Posted February 11, 2014 Use 10mm bolts for y pipe to centre and centre to rear box, the OE cats use a fine thread stud which use M10 x 1.25mm threaded nut and not the usual M10 x 1.5mm thread. Hope this helps. 1 Quote Link to comment Share on other sites More sharing options...
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