Exhaust flapper size

[sextons]

I need to replace the exhaust flapper on a 03 Mobius LSV, the boat is on the lift so I can't get at it easily to measure it, anyone know what size they are, 3 or 4"?

[qb12]

I am about 90% positive it is a 3 inch. Either call your dealer of call discount inboard marine and they can tell you what size it is.

Good luck.

[Jon]

They are 3 1/2" on a 2003 Mobius LSV.

[sextons]

Thanks