Hey I never said they were crap or that they weren't popular. Alot of people like them. To me they sound like they are muffling horsepower, Listen to an engine through Flowmasters then the same engine through Dynomax. I think the Dynomax "enhances" the sound of the engine, whereas the flowmasters sound as though they muffle it. I guess thats why they are called mufflers. My personal opinion is that I prefer the mean raw horsepower that the Dynomax provides. Just like I prefer Fords, alot of people like Chevy, I am not saying they are crap (wink, wink) just I prefer Ford. I used to get a real kick out of the Chevy guys back when we used to race, "My 5.7 liter iroc is almost as fast as a 5.0 Mustang" Thats funny to me. Always thats off topic, Ford power sounds different than Chev, the flowmasters sound good on a chev I guess. Ford has a meatier growl to it and sounds awesome through Dynomax.