BORLA 400841 Crate Mufflers ATAK 3.0" x 3.0" GM Hot 350,383 CID ymm_33 750˝ Thread Size 7/16-20

750˝ Thread Size 7/16-20

The Downpipe w Cat (SS) was developed and tested alongside the Evolution Line (Titanium) system

visual confirmation of hub design compatibility is recommended to ensure proper fitment within the factory distributor

Firebird 1967-1979

BORLA 400841 Crate Mufflers ATAK 3.0" x 3.0" GM Hot 350,383 CID ymm_33 750˝ Thread Size 7/16-20Description BORLA 400841 Crate Mufflers ATAK 3. 0" x 3. 0" GM Hot 350,383 CID BORLA's CrateMuffler is designed specifically to optimize sound and power for crate and custom built engines. This muffler features a directional design, with the outlet identified by the mounting bracket welded to the endcap. It is tuned for the Chevrolet Small Block 350 383 406 CID V8 engine family. The directional construction delivers an aggressive ATAK sound and is