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I have been using Flowmaster products for years, but I am thinking of going with something different now. Not that I don't love the sound of dual 40s, but I am looking at a Magnaflow. My last 50 series that came with my cat back system only lasted 2 years, then it broke the front weld and an internal baffle. That's just not up to my standards. Heck a Cherry Bomb last better than that.
I like the Dynomax ultra flows. They use glasspacking and are constructed pretty good and flow like a *****. If you have a flowmaster and want it to last longer take a wire brush and some VHT header paint and give the muffler a coat. Works with exhaust pipe, hangers and etc also. FWIW Flowmaster also extended their warrenty on mufflers and catbacks.
Before buying a Magnaflow, make sure you look at this. They break around the necks, and this isn't just a once in a while problem that happens on improper installations. Their brittle Korean steel just doesn't hold up.
While our Wickedflow mufflers have not been around long enough to know whether or not they will break over long term, they are made from a heavier gauge more resilient material. They sound about the same as the Magnaflow.
Going by the video you posted it looks to me like the butt weld is failing, not the steel itself. My dad used to have a 3"In Dual 2.5" out magnaflow on his truck and both outlets of that muffler were expanded to fit inside 3" pipe, he had the muffler for over 4 years before going to a different muffler.(For sound purposes) Must be more recent mufflers.
Yes, it did fail at the weld, but not the weld itself. The the failure is along the weld. The place the mufflers fail in real life is around the neck. The entire neck breaks off, often on both ends.
Well I after little thought and a lot of beer, I removed my muffler and tail pipe. Now I only have 3" pipe under the bed with a 5" glasspacked stainless steel tip on it. I like the sound, but will be returning to my roots with a Flowmaster original 40 series dumped before the axle with my 5" tip. My daughter loves it, she calls it a monster truck.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.