Review on 🚗 Dynomax Ultra Flo 17235 Performance Exhaust Muffler by Andrew Kay

Now that I have the settings, my 2007 Avalanche sounds aggressive. I have engine mods and exhaust upgrades. I used 2 Dynomax mufflers for the install, a front muffler, a Dynomax 24238 Race Bullet muffler and a Dynomax 17235 Ultra Flo muffler. Resonator removal and SLP tailpipe terminations. To reduce hum, leave the resonator on.