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-   -   BEST REPLACEMENT EXHAUST FOR 502MPI'S IN SALT WATER (https://www.offshoreonly.com/forums/general-q/7479-best-replacement-exhaust-502mpis-salt-water.html)

bob 02-04-2002 11:33 PM

For what it's worth, I can sell you a pair of KE's exhaust that have about two weeks on them for a real good deal. If you are not running silet choice then you should be good. According to the Hot Boat test completed back in 1997 I think they were good for a 20+ hp inprovement at 5000. You would get the corrosion protection plus performance. If interested email me.

26sonic 02-05-2002 02:10 AM

biggrizzly what boats and motors did you add the stainless marine exhaust to and what gains (mph) did you get.

Diablo 02-07-2002 09:42 PM

Thanks for all of your input,seems to be between stainless marine and cmi.Just got back from florida where my boat is and was able to get to get a great deal on cmi's installed using some credit from my Q guard extended warranty.Boat should be done in two weeks and i'll be back down to try it out the first week in March, i'll let everyone know how it worked out ,Thanks

Michael Carter 02-10-2002 10:11 AM

I had a 1998 26 Scarab with a 502 MAG in it. I had the same problem with the cast iron stock exhaust, even had to have the heads re-done due to all the salt water reversion. Anyway I put on Stainless Marine exhaust and loved them. Total quality product and I picked up about 150 rpm @ wot!
Mike C.


Originally posted by TREP:
<STRONG>NEED TO CHANGE EXHAUST MANIFOLDS ON 502MPI'S LEAKING AT RISERS BADLY EVEN AFTER RPLACING GASKETS.WHAT ARE THOUGHTS ON BEST SYSTEM FOR SALT WATER USE. NOT PLANNING TO MAKE ANY MODS TO ENGINES AT THIS TIME.</STRONG>


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