Upgrade your ride’s performance and sound with the MagnaFlow 4in Round Straight-Through Performance Exhaust Muffler, designed for enthusiasts who demand durability, power, and an aggressive exhaust tone. This universal-fit, straight-through bullet muffler is crafted from corrosion-resistant 409 stainless steel, featuring MagnaFlow’s signature free-flowing perforated core and acoustic fiber fill for optimal sound damping and performance.