Briggs and Stratton 13.5hp XR2100 Engines may have 2 bolts on top of the muffler, and they are set on a diagonal. The muffler is also tapered towards the exhaust pipe. These blankets fit tight to the muffler, and can be installed under the cage if required.
This muffler blanket provides heat shielding to protect surrounding engine components from the intense heat generated by hot mufflers. The installation process is straightforward, requiring no springs, zip ties, or special tools - just simple bolt fastening where applicable.
The blanket comes in two distinct styles to accommodate different engine types. The Briggs and Stratton 13.5hp XR2100 version is designed for tapered mufflers with diagonal bolt placement and fits snugly enough to install under the engine cage if needed. The Rato and Predator 420cc version handles square mufflers with straight vertical bolt alignment, and notably works with side-bolted cage configurations without requiring any top fasteners.
The design offers universal compatibility across various muffler and shield combinations. If your specific engine layout differs from the standard configurations pictured, the Rato version is recommended as it has proven successful on every combination tested. When installing, use bolts with fender washers when available for optimal results.