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billpor930

05-06-2013 01:52 PM

353 Fastech Silent Thunder removal

I'm going to remove the ST on my 2000 353 (500efi's) and I would like to know the diameter of the exhaust tips that come out of the transom so I can buy some flappers. Thanks, Bill

t500hps

05-06-2013 02:52 PM

I've removed a couple and they all had short 4in tips.....only about an inch long so the flapper covers the entire tip.

FIXX	05-06-2013 03:04 PM

fixx

Quote:

Originally Posted by billpor930 (Post 3920041)

I'm going to remove the ST on my 2000 353 (500efi's) and I would like to know the diameter of the exhaust tips that come out of the transom so I can buy some flappers. Thanks, Bill

the tips should already have internal flappers,,mine do..

billpor930

05-07-2013 05:54 PM

Thanks guys for the info, I still want external flappers though, additional safeguard. -Bill

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