Jet Tech has made over 500 custom exhaust tubes since 1999. This YA F-18 Single Bifurcated Exhaust Tube is the first  of the list of bifurcated exhaust tubes for some of the more popular jet kits.  This pipe is designed for 80 size turbines up to 18# thrust and has a 3.25” diameter machined bell mouth and double 2” inner exits. The inner pipe is constructed of .007 302 full hard stainless steel, the outer pipe is .005 302 full hard stainless.  Call or email Jet Tech for availability before ordering this pipe.  Additional shipping charges will be applied.