Does anyone know who makes AN aftermarket header? What kinda of change if any will it do?<br>SD03

 

ATS may possibly make one for the 12 valves. All it's really going to do is maybe help EGT's a little and spool up a little. It's main function on the 24 valve is to preven the cracking that the stock one is prone to. It is a 3 piece so it expands and shrinks seperatly.

 

This cracking...it is only on the 24v? or is the 12v included.

 

12 also<br><br><br> : Eddie : 8)

 

You want the ATS three piece exhaust manifold. It solves the cracking problem permanently.<br><br>I have seen a number of the stock exhaust manifolds actually break the mounting ears right off the head as the manifold shrinks and twists from the heat. The exhaust manifold is the first thing I change on any uprates that will generate more EGT. The Cummins stock exhaust manifold is only designed to handle 900-950 degrees F, and then they start failing.<br><br>There is no header, as such, available for the baby Cummins.

 

SuperiorDiesel03:<br><br>If you go to the thread on this site titled &quot;Cummins<br>Chrome Kit&quot; you can see a picture of the ATS<br>3-piece manifold on my 12 valve 96' Dodge CTD.<br><br>--------<br>John_P