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Old 12-03-2007, 10:52 AM
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Default 525 headers
Who, besides CMI, makes stright back headers for the merc 525???
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Old 12-03-2007, 12:09 PM
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Stellings makes a replacement for the 525 Merc
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Old 12-03-2007, 01:57 PM
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Here's a suggestion....it ought to get the header guys going.....
http://www.stainlessmarine.com/bigblock3.html
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Old 12-03-2007, 05:14 PM
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stellings
Attached Thumbnails 525 headers-header.jpg  
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Old 12-03-2007, 07:08 PM
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Originally Posted by Panther
Here's a suggestion....it ought to get the header guys going.....
http://www.stainlessmarine.com/bigblock3.html
SM does make great exhaust but do they actually make a replacement for the odd bolt pattern 525 ?
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Old 12-03-2007, 07:16 PM
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Originally Posted by Biggus
SM does make great exhaust but do they actually make a replacement for the odd bolt pattern 525 ?
I'm not sure but being aluminum I bet the head can be drilled/tapped, I'd have to check.
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Old 12-03-2007, 08:39 PM
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Stellings makes by far the nicest headers.
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Old 12-03-2007, 09:59 PM
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Is the Stelling big tube straight back suitable for a 525 or is the port sizing off? The 525 headers are not stright back.
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Old 12-04-2007, 06:21 AM
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Originally Posted by Panther
Here's a suggestion....it ought to get the header guys going.....
http://www.stainlessmarine.com/bigblock3.html
I personally think that is one of the best exhaust systems out there, besides KE's exhaust. If you boat in saltwater, they are the way to go, IMHO.
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Old 12-09-2007, 05:28 PM
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Has anyone actually replaced their CMI's on their 525's?
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