The APR Turbo Muffler Delete replaces the factory muffler with a straight, uninterrupted piece, CNC-machined from billet aluminium and anodized black. To ensure proper sealing, APR’s engineers took a two-part approach. A Viton seal is included and forms a seal between the base of the muffler housing and the new piece. With the seal in place and the outer flange installed, the muffler delete tube screws into place, forming a full, uninterrupted path for airflow. Benefits are a better airflow resulting in better airflow, improved throttle response and improved turbo acoustics.