Borla CrateMuffler GM 350/383/ 406 2.5" In/Out S-Type Hose Barb O-Ring Fittings Black anodized aluminum inline thermostat

Black anodized aluminum inline thermostat housing fits GM-style thermostats

A1000 Fuel Pump

850 lb/in Spring Rate

Supports vacuum and boost reference on a 1:1 ratio with PSI

Borla CrateMuffler GM 350/383/ 406 2.5" In/Out S-Type Hose Barb O-Ring Fittings Black anodized aluminum inline thermostatBorla's CrateMuffler is the world's first muffler purpose built to optimize the sound and power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. The directional design provides custom sound, tuned for each engine family and will dramatically reduce, or eliminate drone on specified applications. Built from premium T 304 stainless steel, superior to T 400 series