Is anybody out there running the ATS 2piece exhaust pulse manifold on there 04 ISBE? Likes?, Dislikes?, Insatall problems?
My stock manifold is cracked at 26000 mi
Thanks

 

Yeah,
Great piece.
No dislikes, works like a charm and install is not bad at all.

 

I've been using one for a year and a half on my '04. No problems. I got one of the early ones before they started pre drilling for the pyro probe. Just got finished drilling. The heater hose bracket is a bit of a pain when reinstalling but that's about it.

 

What is the advantage of the 2 piece manifolds?

 

Wap, They tend not to crack because the expansion and contraction of the metal only covers 3 cylinders instead of 2. Most compound turbo set ups use the 3 piece 2nd gen manifolds. Both flow exhaust alot smoother. ks

 

I just ordered one too. Was told that helps with spool up on bottom end

 

Very good product! We have used a couple and they worked great.

 

So there is some what of a performance benefit?

 

You wont see any HP gain but it will let your truck run cooler and allow you to either add more power without cracking or just let you run your truck without having to worry about it cracking.

 

Try porting it,...works better. Put a gasket over the port and you'll see what I mean.

 

There are 2 bosses on the 3 piece unit.
I think just one on the 2 piece.

 

Does anybody know if the 3 piece unit on there site with the high temp coating will fit the 600? I would think that setup would work a little better.

Also was wondering if you port there manifold if you will have any new cracking issues. I just figured if there was much gain to be had by porting, why wouldnt they just send them out this way.

 

The 3 piece is positioned for a 98-02 engine.

The 2 piece is for the 03-06.

Either one would fit on either engine but wouldnt work correctly with your stock turbo and exhaust etc.

 

So will does the stock turbo have a different mounting flange or is it something else? I guess Im just wondering if I need to wait until I do a turbo swap or if I can use one of these manifolds with both setups. I would hate to buy a 4-500 dollar manifold and then be forced to purchase a new one when I switch turbos.