This Quiet Core insert is built specifically for Straightline Performance Aluminum Exhausts, so it slides straight into the muffler you already run without any fuss. Once it is seated, it significantly reduces exhaust noise, which means you keep the power you tuned for and your neighbours finally stop glaring.

It is a compact drop-in piece at 1 lb and 4 x 4 x 4 in, made with precision engineering and high-quality materials for clean sound dampening. The result is a smoother, quieter ride with the performance your exhaust still delivers.