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Cmi Headers/525 Efi Problems?

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Old 09-10-2011, 09:07 AM
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Would they fit on a 525? I only saw headers for the 496 and standard bb on their website.
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Old 09-10-2011, 11:13 AM
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CMI junk!!!!! I had 2 sets leak and everyone I know had issues. My bud locked up 2 engines and bent a rod because of those ****ing things. My brother went to stainless marine and didn't loose one mph.
My bud,S fountain with 200 hrs needs a set and we put header drains on it. the forward set is 5k wtf JUNK!!!!
I will never have a engine with those things on it ever again!!
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Old 09-10-2011, 11:39 AM
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Quote:
Originally Posted by stirling View Post
I wish I could of heard the audio when they were trying to get at the header to head bolts.
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Old 09-10-2011, 12:54 PM
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Quote:
Originally Posted by bert4332 View Post
Would they fit on a 525? I only saw headers for the 496 and standard bb on their website.
The banner behind them says 525 EFI, 600sc and 700sc with a comparison to "brand X".

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Old 09-10-2011, 10:57 PM
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I sent them an email, I'll see if they reply.
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Old 09-11-2011, 12:07 AM
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Those look like nice exhaust manifolds, but I am not sure of the tube configuration inside the outside large jacket. Maybe someone who looked up close can let us know how they are configured inside.
Also, I think there was just recently a post on OSO about HiTek exhausts with some troubling comments? Seems like everyone here could use some real info and updates.

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Old 09-11-2011, 01:41 AM
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Originally Posted by Raylar View Post
Those look like nice exhaust manifolds, but I am not sure of the tube configuration inside the outside large jacket. Maybe someone who looked up close can let us know how they are configured inside.
Also, I think there was just recently a post on OSO about HiTek exhausts with some troubling comments? Seems like everyone here could use some real info and updates.

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Ray @ Raylar
This here? LOL

http://www.offshoreonly.com/forums/g...ve-lesson.html
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Old 09-11-2011, 09:04 AM
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Quote:
Originally Posted by stirling View Post
Here is the info on the card I picked up:

http://www.american-hi-tek.com

David Beich
480-229-4835
800-664-8420
[email protected]
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Old 09-11-2011, 01:41 PM
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Yep , thats the post everyone should read and pay careful attention to.

As for the interior pipe size, length and design, if you are to beleive they are constructed per the cutaway on the 496 set, then I would have to opinion that they will prbably not make any more power than the stock 496 Mercury manifolds. all that extra water around the pipes is another question as to what happens when water flows and pressures from a used water pump starts dropping slowly with hours and use??
Just thinking inside the box here.

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