what year did mercury racing correct the common header issues?

is it safe to say the issues are nonexistent past this year?

are there #'s or anything on the headers to tell the difference between the good and bad sets?

The issues have never been corrected with 525EFI headers.

really? so the cmi "gen-x" headers are having the same issues?

http://www.hardin-marine.com/c-1348-...t-systems.aspx you can use your cmi tailpipes

Yeah I did find the old threads on the hurricanes. They seem promising.

So are the gen-x not what CMI claims?

I swithced to Gen Xs and did not have issues. Best to call CMI and then Teague for fact finding.

According to mercury racing adding the corsa silent choice causes reversion because it changes the mixing point from 16" to around 8". This voids the warranty coverage for any reversion related issues.

What are the options if someone wants silent choice and no header issues?

I'm sure I will get attacked for this,but my 2004 382 Fastech with 525's has the original CMI's it left the factory with.Pressure tested them last year,and all is good. I am going to replace them this year with GEN X's,for simple fact I don't have problems, and don't want any. We replace water pumps,belt,and hoses. All water/cooling related parts before they fail,why not headers? They are not cheap,but new 525's aren't either. Watch the 2 you-tube videos CMI has out.Very informative.It's all about water flow,not so much pressure.Everything has a life span.My boat has 240 hours and 8 years on it. I think the headers held up well. I have silent choice as well,and use it quite often. I also boat in salt water.Boat is lift kept and flushed 10 minutes a side. One thing CMI talks about is not to raise rpm's above idle on flush.A standard garden hose usually doesn't have the proper flow to keep up with cooling the headers above idle.

Having cooling water flowing through the headers seems to help them last a long time.

Where did you see that?