Borla Muffler Part No. 40349 Center Caps superior to T-400 series (such

superior to T-400 series (such as 409)

The outlet can be identified by the mounting bracket welded to the endcap

air filter and air box (where applicable)

Hybrid Technology combines 3 protective ingredients in one product

Borla Muffler Part No. 40349 Center Caps superior to T-400 series (suchBORLA'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