-12 AN Braided Stainless Steel Hose Line [3 ft. Length] The main difference is that

The main difference is that there is an open area under the plenum chamber

They are made from stamped steel and feature a chrome plated finish for good looks and durability

and header clearance

These pumps have a 140 gph flow rate

These Speedmaster Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume

-12 AN Braided Stainless Steel Hose Line [3 ft. Length] The main difference is thatSpeedmaster braided hoses feature a partial stainless steel reinforcement within the inner braid. On the outside we've added a heavy duty, protective, full stainless steel braid, making it exceptionally lightweight, flexible, and durable.