Just put an ATS exhaust manifold on. What a nice piece, this is the manifold that should have came on the Cummins stock. Way more meat on it than the stock piece. My manifold was cracking and a stock replacement was almost the same price, money well spent if you need to replace your stock one IMHO.

 

How does it effect like spool up EGTs cool down time etc....
Really thinking about getting one for the proect truck.

 

After I installed mine, I noticed a little better spool-up and a little quicker cool off. Stock trucks won't benefit as muck as modded trucks will.
It is a great piece and should be on every truck.

 

DRD,
How much are those ATS manifolds running now? Is that the 3 piece one? Oh and what effect does it have on EGT temps? Scott

 

"How much are those ATS manifolds running now? Is that the 3 piece one? Oh and what effect does it have on EGT temps? Scott"

They run about 450 USD, it is the 3 piece. I noticed maybe 50F lower EGT but I also changed some intercooler boots at the same time, I think the boots had more of effect than the manifold. I changed mine more to get rid of the broken stocker than for anything else. Like I said, way better manifold than the stocker.

I read some post on the other website about people having trouble keeping the bolts tight. Anyone have similar trouble?
I think I might put the stock bolts back in on the end pieces with spacers and locks.

 

I have had 2 ATS manifolds on 2 trucks and think a lot of them. On the 12-valve truck I got though I am considering the DPU exhaust header (Diesel Performance Unlimited) but he kit is quite spendy. . . $750.

Vaughn

 

do u have a web site for DPU???

 

I've installed several and never had a problem. You should check the bolts a few times the first thousand miles just to be sure.

Know the thread you're talking about, I think the fellow was making too much out of it. Seemed like he ended up spending more on fancy bolts than the manifold itself...