Anybody have any feedback on these exhaust manifolds?

capt dong · Nov 22, 2013

Sinister diesel for the 6.0

http://www.mkmcustoms.com/sinisterdiesel60lpowerstrokeheaders.aspx

BD Power Diesel 6.0

http://www.dieselperformance.com/index.php/product/index/292P

Erikclaw · Nov 22, 2013

This is the 6.4 area.

CT9AIX · Nov 22, 2013

For $1500 I would love to see a dyno chart of what gains would be actually made. I tried googling a little but didn't come up with much. Also they don't list the wall thickness on the website, prob schedual 40 tube but would be nice to know seeing its easy to see extended high egts. On the plus side tubular manifolds usually give it a cooler sound... At least it does on turbo cars lol I'd be more prone to run cast mani's on the truck just for peace of mind

capt dong · Nov 22, 2013

Erikclaw said:
This is the 6.4 area.

So these won't fit a 6.4?

Jeff@Spartan · Nov 22, 2013

Erikclaw said:
This is the 6.4 area.

People use 6.0 manifolds on the 6.4 pretty often.

Dzchey21 · Nov 22, 2013

that big dummy has some!!! lol

The bd ones look pretty nice for the money

powerstroked08 · Nov 23, 2013

Those header style ones look pretty bad a$$! But they would probably lose a lot of heat though.

HOOV3R · Nov 23, 2013

The sinister headers with the one piece flange look like a bad idea.

Super08Duty · Nov 23, 2013

Wouldn't be surprised if the sinister headers made spool up worse

3brorce · Nov 23, 2013

Im going with used 6.0 manis. Having them blasted and coated. Done.

bigrpowr · Nov 24, 2013

3brorce said:
Im going with used 6.0 manis. Having them blasted and coated. Done.

this must be due to your massive budget. LOL they work just fine !

extreme3807 · Nov 24, 2013

Call me crazy but I say the sinister. As close to true headers as possible

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B585Ford · Nov 24, 2013

Super08Duty said:
Wouldn't be surprised if the sinister headers made spool up worse

Why....lose velocity/pressure like the SS?

09punisher · Nov 24, 2013

Anyone know what gains can be expected with upgraded manifolds over stock ? I'm interested in doing this if cost is compensated with gains

Super08Duty · Nov 24, 2013

B585Ford said:
Why....lose velocity/pressure like the SS?

That's what I'm thinkin

powerstroked08 · Nov 24, 2013

09punisher said:
Anyone know what gains can be expected with upgraded manifolds over stock ? I'm interested in doing this if cost is compensated with gains

I don't think anybody has posted back to back dyno results with JUST doing a manifold swap(other than steed speeds and that was a big ordeal) And I don't think the gains are much personally. I did ported 6.0 manifolds on mine, and that was for the increased flow as well as I think by having the cast elbow there is less of a chance to blow an up pipe. Weither or not I gained any power I don't know, but it was a poor mans upgrade which fits my budget!