Description This optional triangular muffler can be added to the APR catback exhaust system. When upgrading other exhaust components the system gets louder. For those who want it quieter, our front muffler makes for an excellent upgrade. Features: T304 stainless-steel construction Argon-back-purged TIG welding throughout 3" straight-through design Brushed-finished muffler Slip clamp included Smoother exhaust note Easy to install Install Instructions