The Black Widow Neighborhater Muffler delivers a brutally aggressive exhaust note while maintaining impressive flow thanks to its virtually unrestricted internal design. Crafted from 409 stainless steel, this dual-direction muffler features a 3" inlet and comes in a compact 6" × 5" footprint that fits tight spaces without sacrificing sound or performance. Its patent-pending internal hourglass design helps reduce drone and unwanted resonance while giving drivers the deep, nasty rumble that sets this unit apart. Universally designed for custom exhaust builds (not direct OEM fit), this muffler is recommended for professional installation or experienced DIY enthusiasts. Whether you're outfitting a muscle car, hot rod, or do-it-all performance build, the Neighborhater sets the tone with both style and sound.