SuperTrapp's Crossover Conversion turns the OEM 2-into-1 system as used on US Domestic 2010 FLHX and FLTRX models into a 2-into-1-into-2. This gives you back the stock dual exhaust look and sound that riders are looking for. It connects to the stock head pipe, which keeps your OEM catalytic converter in place and then crosses under the frame like the stock 2-into-1-into-2 systems known for the other Touring models. The conversion is designed specifically to work with all of the SuperTrapp and Kerker slip-ons for FLH and FLT models. The Conversion kit comes complete with required hardware and heat shields. Fits 2010 US Domestic FLHX Road Glide and FLTRX Street Glide. Does not fit International export models (frame number starting with 5HD).