brianmurray325hotmail.com Posted October 18, 2012 Share Posted October 18, 2012 has anybody upgraded from the sigma engine to the duratec unit. does the existing exhaust primary transit hole in the bodywork line up with duratec primaries or does in need enlarging? Link to comment Share on other sites More sharing options...
The Pikey Posted October 22, 2012 Share Posted October 22, 2012 I am 99% sure the holes are the same size and in the same place. But If you are really lucky then they will be in a different place and then you have a great excuse to get a decent 4-2-1 made and ditch the cheeseman offering in the for sale section Link to comment Share on other sites More sharing options...
mic Posted October 23, 2012 Share Posted October 23, 2012 The hole will probably need opening out , I assume you are using Caterham engine mounts and exhaust system. Link to comment Share on other sites More sharing options...
mic Posted October 26, 2012 Share Posted October 26, 2012 Hi Brian, I can probably sort a template out if it helps. Link to comment Share on other sites More sharing options...
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