Product Overview
This Exhaust Adapter (5" → 4") is engineered specifically for trucks running 4-inch exhaust systems that need to install a heat kit. Since the diverter box and spring plate assemblies are only available in 5-inch, this in-house fabricated stainless steel reducer makes the transition seamless. Built from 11GA 304 stainless sheet and 4" 304 stainless tubing, the adapter is corrosion-resistant, durable, and designed for heavy-duty heat kit installations. A reliable solution for operators upgrading or retrofitting trucks with 4" exhaust who need compatibility with 5" heat kit components.
