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Stainless Marine 525 exhaust

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Old 01-11-2011, 03:15 PM
  #31
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panther your motor sounds good . here is mine http://www.youtube.com/user/SuperBaj.../0/XKQj2fy91BU
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Old 02-19-2011, 02:50 AM
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Quote:
Originally Posted by Raylar View Post
Changing the CMI 525efi sweepers to a non -long tube header will loose some power on the 525efi and definitely some torque in the mid-range. You should look at CMI's new GEN-X replacement header for the 525efi these can be ordered in the same drilling and will not suffer the cracking problem that the 05-06 Merc 525 CMI headers do and should be a direct bolt in replacement. I have no expierence with the Hardin units and I hear they can be a good header, but it depends as you might want to research the Hardin headers here on OSO>

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Ray @ Raylar
What about the 2004 and earlier CMI's that came on the 525's? are they prone to cracking as well?
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Old 02-19-2011, 11:26 AM
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Originally Posted by breakitout View Post
What about the 2004 and earlier CMI's that came on the 525's? are they prone to cracking as well?
Yes
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Old 02-19-2011, 03:31 PM
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Just had a conversation with CMI at the Miami show.
Not very friendly bunch, but I will get you guys the full story once I get back home.
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Old 02-20-2011, 10:01 PM
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Check with Randy at Stellings!

http://www.stellingsmarineproducts.com/home/
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Old 02-21-2011, 03:53 PM
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The headers sound better! http://www.youtube.com/watch?v=i7H6zNFH8f0
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Old 03-09-2011, 05:41 PM
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Just had a conversation with CMI at the Miami show.
Not very friendly bunch, but I will get you guys the full story once I get back home.
you still at the show
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Old 03-09-2011, 06:02 PM
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Just saw that Hardin Marine has replacements for the 525 headers called "Hurricane Lites" and they even make them with the "CMI flange" as their literature states. Were listed around $5K per set depending on the place selling them.
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Old 03-31-2011, 08:03 PM
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you still at the show
LOL. NOOOO... but there has been some "developments".
Just reading some of these "older" posts, one of these days I have to do some "eleboration" and some detailed comments, but for now, just working on getting the lady on the water again. Motors are good. Headers? hmmm.. no comment.
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Old 04-01-2011, 06:59 AM
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Not enough of those engines out there to warrant the tooling up by SM I bet. Adapter plate a possibility, but close engine installations (side by side) would have some clearance issues...

Sold several sets of standard SM's to folks running 540's, no issues, no worries. Choose your riser properly and you won't ever look back once you switch!
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