Moroso Holley Vacuum Secondary Spring Kit Beyea Custom Headers Copper dissipates heat much better

Copper dissipates heat much better than other materials

These are designed longer than factory arms

Stainless Steel Construction: This system is constructed of durable mandrel bent stainless steel tubing for maximum performance

Two piece construction allows for shipping by UPS

F intermittent heat Pre-wetting roll not necessary for wrapping Reduce underhood temps NOTE: Catalytic Convertors: Wrapping of the catalytic converter is not recommended

Moroso Holley Vacuum Secondary Spring Kit Beyea Custom Headers Copper dissipates heat much betterProduct Description: Vacuum Secondary Spring Steel Color Coded Holley Carburetors Set of 7 Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. Moroso manufactures over 4000 products, from oil pans and oiling systems, to ignition wire, ignition components, valve covers, fuel system equipment, air cleaners, hard core racing tools, chassis and suspension