flows on a 8
^Agreed! Had a 40 series on mine when I first bought it...lasted bout 6 months before all the baffles melted out of it. Flowmaster even says not to use their mufflers on a rotary application because they can't hold up to the heat of a rotary engine.
Most if not all of these "off the shelf" Mufflers will melt when use on Rotary Application. Cuz most of them use "cheaper" Fiberglass stuff in them.
Your best bet is to go get some name brand CAT back systems.
Your best bet is to go get some name brand CAT back systems.
I had a 50 series flowmaster which is thicker walled than a 40 series on my RX-7 TII for ~4 years. It didn't melt. The turbo obviously reduces the heat soak heat, but it didn't have a cat so I imagine the temps weren't completely different.
Racing Beat builds incredible exhausts. Just buy theirs.
Racing Beat builds incredible exhausts. Just buy theirs.
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JimmyBlack
Series I Major Horsepower Upgrades
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Feb 10, 2020 10:23 PM




