Moroso Racing Radiator Cap 27-29 PSI High Pressure | 63328 reason-Open Clutch break-in period required -

Clutch break-in period required - avoid aggressive driving for first 500 miles

Does not require oil

Remove the rear toe arms

and manufactured in the USA with American-made tooling

Moroso Racing Radiator Cap 27-29 PSI High Pressure | 63328 reason-Open Clutch break-in period required -This is Moroso's higher pressure racing cap, built for cooling systems that need more headroom than a standard 14 18 lb cap provides. Running at 27 29 lbs, it pushes your coolant's boiling point up further, buying you more margin before you're fighting boil over on track or under sustained hard load. Like the rest of Moroso's radiator cap line, it uses a stainless steel spring that holds its pressure setting over time instead of weakening the way a