QTP 2.50 Inch AR3 MufflerWe recognized through our own racing program that something was missing in the industry. The AR3 Muffler was born. The AR3 delivers a high quality muffler with a compact design with excellent flow characteristics while helping drivers and tracks support environmental concerns. The AR3 Muffler delivers maximum performance in a small, lightweight package. A low profile height combined with a free flowing perforated internal baffle to minimize resonance.