Nickb Posted February 27, 2008 Share Posted February 27, 2008 Hi, Does anyone know the diameter of the exhaust after the 4-1 collector on a crossflow 5" race exhaust as have purchased a new silencer (thanks Snuttall arrived today!) and need to get an adaptor to fit!! thanks Nick 1993 Supersprint Link to comment Share on other sites More sharing options...
Graham Perry Posted February 28, 2008 Share Posted February 28, 2008 NickB, I think you will need to measure it. Mine is 2.25" OD. Many are 2" and I would not be surprised if there are even a few at 2.5" Link to comment Share on other sites More sharing options...
DohNut Posted February 29, 2008 Share Posted February 29, 2008 I am pretty sure that my 4to1 with an early 4inch can was 2 inch. The 6inch Techcraft can I put on was 2.25inch inlet. The 7 workshop cut off the 2" outlet of the collector and had a jig that allowed the new 2.25inch pipe to be welded to the collector at a slight angle to allow the can to sit correctly against the body. A nicer solution then having an adaptor with kinks and stepdowns and stepups of diameter. N Link to comment Share on other sites More sharing options...
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