Review on 🔊 Lawson Industries INSYNERATOR 77753 - High-performance Big Body Muffler by Justin Ott

Replaced a rotten OEM muffler with a 2014 Tundra 4.6L V8. It was hard to hum at first. Trimmed my exhaust pipe to reset after the last hanger just passed the rear axle. Now it's perfect. Chamber sound, similar to the Flowmaster 50 series muffler. After shortening the exhaust pipe, there is no rumble in the cabin. No rasp. Simply pure V8 sound. Combined with a K&N filter and now averages 2mpg more (average 18.4mpg). Torque is slightly higher in the powerband. Noticeable difference at highway speeds. From the seat there are no perceptible differences apart from the deeper sound of the V8. Also reduces the natural (normal) OEM ticking noise coming from the engine bay.