Markymark Posted September 21, 2017 Share Posted September 21, 2017 This post probably wont get the heart pumping but here goes......Went to see Chris C with My Sigma 150 and he showed me how to set the tuning for myself. Will be doing this once the equipment arrives! A big thank you Chris.We noticed when we took the air filter off the back plate was damaged so will be replacing. Chris guessed there maybe an O-ring joining the trumpets to the manifold. These look like they need to be unbolted to slide the back plate on and off.QUESTION : anybody done this and are there any O-rings needed? Caterham and Titan thought there weren't any. Wanted to get all the bits before commencing the replacement. So if needed anybody recommend a source? Any advice on this task in addition most welcome.CheersMark Link to comment Share on other sites More sharing options...
elie boone Posted September 21, 2017 Share Posted September 21, 2017 never seen an o ring on trumpets, what is important is that they are flush with the TB or RB's ( on the inside ) Link to comment Share on other sites More sharing options...
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