Skunk2 Ultra-Series primary fuel rails are high-volume rails made for the Ultra Race intake manifold, machined from 6061-T6 aluminum with 0.669-inch internal bores and -8 AN o-ring threads. They support E85 and methanol use and are intended for setups with external fuel pressure regulation, with flow capacity stated to support up to 1,200 hp. These rails are offered in black to match race-oriented engine bays.
Skunk2 B Ultra Race Manifold Primary Black High Volume Fuel Rails