Review on 🚀 Dynomax Ultra Flo 17219 Exhaust Muffler: Superior Performance and Efficiency by David Tison

Replaced a pair of Magnaflows with these after getting tired of the exhaust hum. They have a deeper sound and are soft at idle. Full Throttle sounds great and has received many compliments on the sound. They come equipped on the Escalade EXT with a high compression 408ci BTR inline cam, ported heads, long pipe headers, 3" X-pipe and a true dual coilless exhaust. Magnaflows worked great with the stock engine and short coil manifolds. I have rebuilt the engine and replaced the headers, they sounded like double glazing.