I know this subject has been beaten to death. I've done every search imaginable and have read extensively on the 525s with headers. The cracking, the internal problems created from it. I've posted a thread in the fountain forum a few months back. My dream boat is a 38 lightning staggered. Hence my 525 questions.

I'm curious if anyone has done the manifolds on thier 525s?

The stainless marine ones and redrilled heads?
Read of ke manifolds, can't seem to find them if they are a direct replacement.

When I buy the boat I'm not willing to drop a motor of some exhaust. Reliability beats bling!!

I understand the idea of pressure checking the headers and am ok with that except what if I pressure check them and put them on and they crack very next run. Simply put just checking them only insures not currently failed not protection for impending failure.

I want a 2007 or newer when I buy.

So anyone with manifolds on the 525?

seach cmi exhaust,,,i did see a pic of 525,s with stainless marine manifolds on them,,

Saw that pic, it's on their website. Just curious if any members have switched exhausts and what they went with. Also if they are problem free now.

i switched to the cp preformance headers,,hurricane http://www.cpperformance.com/c-412-h...tems.aspxlites second year with them ,no problems so far

Diamond Performance now owns the K/E molds . Give Bill a call ... @ 302 521 0123 .

Doesn't Cmi make a replacement now? Built to there own specs not mercury's. I believe stellings makes a 525 replacement header as well.

I appreciate all te responses.

Now has anyone replaced theirs? Who did you use? Happy? How long have they been on?

A friend has stellings on a set of 525's..... jesus christ does it sound good. Just be prepared to spend $$$$$$$$$$$$$$$$$$$$$$$

is stelling still in business?

I've seen Stainless marine on a set of 600sci's. Much lighter and perform well. These are on a Doug Wright 40 cat