DIESELR Universal Muffler - 4"

Built for serious diesel owners who want quieter performance without sacrificing flow, the DIESELR Universal Diesel Muffler delivers reliable sound control with no compromises.

This straight-through design features a perforated core wrapped in fiberglass packing to smooth out exhaust tone while maintaining consistent pressure and velocity. Whether you're running a custom setup or replacing a worn-out canister, this muffler keeps things tight, efficient, and clean under the truck.

Constructed from welded stainless steel, it’s built to resist corrosion and heat fatigue, even under demanding load cycles. The 20" overall length makes it suitable for a variety of installations, and with 4" or 5" inlet/outlet options, it’s a go-to choice for many diesel platforms.

From daily drivers to workhorse rigs, the DIESELR Universal Diesel Muffler helps control resonance while keeping your system free-flowing and efficient.

Features:

• Reduces overall noise volume
• Straight-through perforated core
• Stainless steel welded construction
• Packed with fiberglass insulation
• Inlet/Outlet sizes: 4" x 4" 
• Overall length: 20"

Fitment:

Universal fit for custom or aftermarket diesel exhaust systems with 4"