I'm. Probably going to get railed for this but I cheaped out and bought a dg rcm2 "slip on" for the trx. It had an fmf but the rear snapped in two. Tried brazing it but it shit the bed. Anywho the "slip on" end of the dg is tapered down and slips inside the factory exhaust ( I'm assuming the exhaust is factory). Did the ebay seller screw up of it my exhaust manifold maybe fmf and a larger diameter ?