I got my new exhaust manifold from HTT yesterday and thought I would post a couple of pics.



Oh well, I tried.
They are in my gallery if anyone is curious

 

Looks good ......when is the install?

 

I hope to install it saturday.
It has two holes drilled and tapped for 1/8" pyro but I will have to drill & tap one of them for my 1/4" probe.
I ordered it pre assembled so that should make the install a bit easier.

 

I might have to get one of those! How's the inside look? Is it cast cleaner than the ATS?

 

It seems pretty well cast and pretty smooth inside.
I will add some more pictures to my gallery

 

Well, I got the manifold put in.
I put some pictures in my gallery if anyone is interested.

 

Looks nice! I'll have to add that to my never ending list of things to do to my truck.

 

Have you seen a reduction in the egt?

 

no, EGT's are the same.
I think the 12cm housing is the bottleneck as far as exhaust goes.

 

Those inlet ports look a lot cleaner than the ATS (at least the one I got). The ATS were pretty ragged compared. Had to grind them on down to straighten it all out.

I can't help but think you'll see an improvement in the general spool-up range (not WOT type throttle if that makes sense).

 

I guess the only thing different that I have noticed is that I can't hear the small exhaust leaks I had with the shrunken stock manifold.

 

nice!! tell us if it helps anywhere,

 

OK, I probably should know this but I don't so I'll ask. What's the difference between the 1st gen. and 2nd. gen 12V exhaust manifold? I see HTT designating this for '94-'02. Why won't it fit my '92?

BTW, did you get the optional HPC coating? If so, how do you like it?

 

I don't know about the first gen's but I know they have them for the 12v & 24v.
As for the HPC coating, no I didn't spring for it. Too much money.

 

To put the ATS manifold on a 1st gen I've heard that you have to clearance the firewall a little. I assume the HTT manifold is the same way. It will bolt to the head, it just might take a little hammer work to get it there.