Offshoreonly.com - corsa muffler tips ?

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26sonic

08-03-2003 12:10 PM

corsa muffler tips ?

have on my 1998 502efi with thru hull exhaust the corsa tips with built in mufflers that are always on . they do help alittle to quiet down the boat but are they robbing me of any performance ?

Raypanic

08-03-2003 07:10 PM

The 6" diameter are good for 525 Hp the 6 1/2" are good for 650 Hp

John B

08-03-2003 08:08 PM

I replaced two pair of 6" Corsa mufflers on a Formula with 525efi's and gained 2-3 mph gps and 150 rpm. Probably cost 30 hp on each motor!

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