Review on Walker 21063 Quiet Flow Stainless Muffler by Gus Gutierrez

This is Walker's only 2 1/2" solid tube silent muffler. The muffler was fairly quiet under full acceleration on our Jeep 3.7 v-6, but like the other mufflers it hummed at lower RPMs. The high output was eerily quiet but added a lot of power to the stock muffler.like a luxury performance car.This muffler has no extra chambers inside that seem to act like a resonator on other mufflers.Adding a resonator to this muffler will probably do the Kill drone but still give you enough flow to handle 250hp on the whistle and be quiet I really like this damper.