CrateMuffler Muffler Chevrolet Big Block 396/ 402/ 427 CID V8 Stock Output 2.5in Offset Inlet/ 2.5in Offset Outlet ATAK ECU & Electronics GTIN: 00651860468488

GTIN: 00651860468488

GTIN: 00651860879833

GTIN: 00808422140355

Includes 1/8" NPT fittings and nylon line kit

GTIN: 00046074024849

CrateMuffler Muffler Chevrolet Big Block 396/ 402/ 427 CID V8 Stock Output 2.5in Offset Inlet/ 2.5in Offset Outlet ATAK ECU & Electronics GTIN: 00651860468488Borla's CrateMuffler? is the world's first muffler purpose built to optimize the sound & 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