Review on Flowmaster 842453 Delta Muffler 409S by Robert Grimm

I didn't think a V6 could sound like a V8 just by turning off the muffler. I fucking LOVE the rumble in and out of the cockpit. I restored back pressure, which increased my power and helped reduce fuel consumption. I lost a lot of both taking advantage of a muffler shop who had no idea what they were talking about. I wanted something quiet but now I want it louder, now it's so much fun to drive a truck. I recommend this to Nissan Frontier/Xterra owners with 4.0L.