Experience MagnaFlow’s iconic tone and proven performance with the 12589 Straight-Through Performance Muffler, designed for enthusiasts seeking both power and sound. This universal muffler features a free-flowing, straight-through perforated stainless steel core, wrapped in stainless mesh and acoustic fiber fill to deliver MagnaFlow’s signature deep, refined exhaust note.
 
Built for flexibility and ease of integration into custom systems, the reversible 3" inlet and outlet allow for universal fitment and multiple installation orientations. Whether you're upgrading a daily driver or a weekend warrior, this muffler offers excellent versatility (professional installation recommended).
 
The 5" x 11" x 22" oval-shaped body is weight-optimized and finished in sleek satin stainless steel, elevating the visual appeal of your entire exhaust system. Crafted from durable, corrosion-resistant stainless steel and manufactured with CNC precision robotic technology, the 12589 delivers reliable performance with long-lasting durability.
 
Key Features:
Universal design with reversible 3" inlet/outlet
Straight-through core for unrestricted flow and improved performance
Delivers deep, smooth MagnaFlow signature sound
5" x 11" oval body with 22" muffler length (approx. 28" overall)
Satin stainless steel finish for clean aesthetics
Built from corrosion-resistant stainless steel
CNC robotic manufacturing for perfect consistency
Backed by MagnaFlow’s Limited Lifetime Construction Warranty
 
Built for performance, sound, and style—the MagnaFlow 12589 is the perfect finishing touch for any custom exhaust system.