Review on 🏎️ Performance Boost: Flowmaster 527504 2.75" In(D)/2.5"(D) Out 50 Series Muffler Bb by Brad Jeffress

I chose this muffler because it was perfect for my large 7.4 liter block. The sound is incredible! I didn't want anything loud, but I wanted to hear my truck through the exhaust. I hear a nice low-mid growl on start-up, but driving the interstate I can't tell the sound is any different from the stock muffler. No annoying drone. The biggest benefit of this muffler was that I got just over 1 mpg. Maybe even more if I pedal a little harder because I like the sound. The only drawback is that I would like stainless steel. I could not find this muffler on the Stainless Steel Flowmaster website.