Borla Crate Muffler - ATAK (400854) _NAVIGATOR_COVER_(1) Provisioned raised boss for two

Provisioned raised boss for two water/methanol nozzles with optimized thread depth for spray pattern

To maintain finish quality and safety

Designed for use with 1998 1/2 to 2004 4

Modern green LED through-the-dial lighting provides clear visibility during nighttime use

Memory Replay (30 Seconds)

Borla Crate Muffler - ATAK (400854) _NAVIGATOR_COVER_(1) Provisioned raised boss for twoBorla CrateMuffler for Chevrolet Big Block Stock Output 396 402 427 CID ATAK. (400854) BORLA'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