53mm High Performance Thermostat (160 Deg F) 1996-pontiac-firebird-esi1593369 Single-adjustable Proma Star shocks let

Single-adjustable Proma Star shocks let you fine-tune the ride

Please verify whether your vehicle has (1) or (2) upper control arms

Valve Spring Specifications: Type: Non-Rotator Seat Pressure: 110 lbs

The three-way adjustable SB054 gives you a 73%-125% increase in rate over the stock bar

53mm High Performance Thermostat (160 Deg F) 1996-pontiac-firebird-esi1593369 Single-adjustable Proma Star shocks letEdelbrock thermostats are designed to ensure consistent cooling in high performance applications. Feature a brass and copper valve assembly with a stainless steel body for durability. This 160 Deg F thermostat is a bolt on OEM style replacement that measures 53mm.