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The MagnaFlow 4x9in oval straight-through performance muffler (model 11378) features a perforated stainless core, stainless mesh and acoustic fiber fill to reduce unwanted resonance while providing a smooth, deep tone and improved flow. Dual 2.25in inlet/outlet ports and a 4x11x9 satin-finish, weight-optimized body give installation flexibility. CNC-built stainless construction and a limited lifetime construction warranty provide lasting value.
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
