That is a Stock engine (chances are). Save your money. You will get much
more performance from a prop swap.
What prop are you running now.
What is your max rpms at wide open trimmed out.
What is your max speed.
What type of boat to you have
What type of boating are you interested in (skiing, tubing, riding, lots of
people, just 1 or 2 people, top speed, acceleration)

A good SS performance prop setup for your rig can increase top speed by 5
mph or more over a stock aluminum prop.

--
Tony
My Boats and Cars
http://t.thomas.home.mchsi.com
"mgg" wrote in message
. ..
If your engine is bone stock, don't waste your money, the OEM units are
fine.

I'm not sure if it's bone stock or not. I'm the third owner. Is there a
way to tell? It's a 4.3l Merc.

--Mike

"bomar" wrote in message
news
It is true...in fact there are a number of aftermarket suppliers of spar
arrestors that will flow better than the stock units.
If your engine is bone stock, don't waste your money, the OEM units are
fine.
If you are into High Performance boating there are a lot better choices
(all
USCG approved) than OEM

"mgg" wrote in message
. ..
I read recently that K&N makes a filter approved for marine engines that
has
better flow and filtration than my old aluminum flame arrestor. Is this
true, or just K&N hype?

Thanks.

--Mike