The Borla CrateMuffler ATAK exhaust muffler is a universal part, listed with a 3-inch offset inlet and 3-inch center outlet in a 6-inch by 10.34-inch oval case with a 14-inch body and 19-inch overall length. It is tuned for the LS3 6.2L V8 engine family. The muffler is directional, so its outlet end is marked by the mounting bracket welded to the endcap.

Part number: 400958

Borla crate muffler.

The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. The directional design provides the aggressive ATAK® sound and will dramatically reduce, or eliminate drone on specified applications. The muffler features BORLA®'s Polyphonic Harmonizer Technology that utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound.

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