Magnaflow 11379 Oval Straight-Through Muffler 4x9x11 Dual 2.5in

Vehicle Fitment

• Universal - fits any custom exhaust build using a 2.5in inlet/outlet configuration

Fitment Notes

• Dual 2.5in inlet / dual 2.5in outlet configuration (offset inlet/outlet locations); professional installation is highly recommended for proper fitment into a custom exhaust system

Features

• Free-flowing, straight-through perforated stainless steel core wrapped in stainless mesh and acoustic fiber fill
• Two-stage acoustic packing maintains exhaust flow velocity while producing a smooth, deep tone
• Extensively dyno-tested to improve engine power and performance through better exhaust gas evacuation
• Weight-optimized oval body with a satin stainless steel finish
• Corrosion-resistant stainless steel construction, made using CNC precision robotic manufacturing
• Proudly made in the USA

Specifications

• Body shape: Oval
• Body dimensions: 4in x 9in x 11in
• Overall length: 17in
• Inlet: Dual, 2.5in each
• Outlet: Dual, 2.5in each
• Material: 409 stainless steel
• Finish: Satin
• Internal construction: Perforated stainless tube with acoustic packing

Included Components

• 1x Oval straight-through performance muffler

Product Description

The Magnaflow 11379 is a universal-fit oval straight-through performance muffler, delivering Magnaflow's signature deep exhaust tone alongside dyno-proven performance gains. Its free-flowing perforated stainless steel core, wrapped in stainless mesh and acoustic fiber fill, is engineered to improve exhaust gas evacuation and flow dynamics compared to a restrictive stock muffler.

Built with a dual 2.5in inlet and dual 2.5in outlet configuration, this weight-optimized 4x9x11in oval body is designed for custom exhaust fabrication projects. Constructed from corrosion-resistant 409 stainless steel with a satin finish, it's made in the USA using CNC precision robotic manufacturing and backed by Magnaflow's limited lifetime construction warranty.