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What's the F42 formers and tray for?
Does the shroud ring in the latest kits that surrounds the exhaust and front pipe area seem a bit tight in diameter?
Seems like it might choke the bypass air and limit the venturi affect.
I haven't decided if I'll use it or make a aluminum one like Joeflyer did.
If it proves to be adequate, I will put aluminum tape on the interior surface of the ring.
Keith