Review on 🚗 Upower 4-Inch Inlet Diesel Exhaust Muffler 7x24 Body: Straight Through Stainless Steel Resonator Muffler XS2772 by Damon Fields

Let me start by saying that the performance of this resonator couldn't be better. I have a full remote Cummins 6.7 with a big turbo, big exhaust manifold, big intake manifold and a 4 inch stainless steel all straight exhaust pipe. Yes, it sounded amazing after all the updates I've made to make it run better without any nasty outliers. Eventually I got tired of long drives to hear the cockpit hum that I would have to stop for a call or call back later, the hum is awful at around 2000 rpm or about highway cruising speed. I searched and found many similar resonators on other sites, more expensive but they all looked the same. This was installed and solved all my problems, now the truck drives quietly down the road but still keeps its hum and there are no restrictions. With this resonator. Now I hear turbine sounds like never before. I highly recommend this product and you will need clamps when installing and I welded it on so I'm not worried about rumbling in the F-seam.