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Re: Big Block Muffler SHOOTOUT!
Depends on how strong the motor is and how the exhaust is setup
My friend went from a 305 to a 454 and his thrush welded series got quieter
My friend went from flowbastard 44s to purple hornies glass packs. It got quieter...this is just my findings. It seems the construction of the muffler will make the biggest difference. Then how the motor is built will change the flow through a muffler.
there was a test on mufflers in a "ford" forum that found that there was a 8hp difference between no/worst mufflers and the best.
Personally I would buy in to spin techs design. When I got their mufflers I picked up the box with one hand and it dropped on my foot. Those things are built like tanks! I can imagine the sheet metal that magnaslow and flowbastard uses would vibrate and resonate making the toilet sounds one typically hears.
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