Flowmaster vs Thrush Glasspack. Just a quick video comparing a flowmaster original 40 series muffler to a Thrush glasspack. I bought the glasspack about 6 months ago and installed it, just recently i got a hold of a 40 series flowmaster and just out of curiosity wanted to see if there was a noticeable difference between the tone and volume of the 2 mufflers. I installed the mufflers onto my 2003 dodge ram 1500 that has the 4.7 motor, the rest of the exhaust is stock just a muffler swap. In conclusion even though it was hard to tell on camera i like the sound of the glasspack better, it had more of a rumble to it and was louder. Hope this video helped anyone caught between the two mufflers . if it did hit that like button and don't forget to subscribe, leave some comments below on whats your favorite muffler to run.
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