The fuel rail plumbing kits allow for an OEM bolt-on affair.  The kits eliminate any unnecessary hoses that route over the top of the engine preheating the fuel. It plumbs the fuel rails starting from the SAE quick disconnect fitting upstream near the firewall. The rails are ran in parallel for even fuel distribution with a high flowing billet aluminum Y-adapter fitting. All hoses are high quality PTFE compatible will all fuel types including E85. Plugs are included for all unused ports.

20-1435 FUEL RAIL PLUMBING KIT, S550
COMPATIBILITY
15-17 Ford Mustang GT
18-23 Ford Mustang GT
15-20 Ford Shelby GT350 

Instruction PDF