Re: Dana exhast?
 

I just checked out the website and the price is more than competetive....Do the aluminum risers have the seperated runners? What is the effective length of the runners with each of the risers? Looks to be a really nice set up. Thanks- Chuck

Re: Dana exhast?
 

I have sold Dana exhausts in the past to quite a few customers and have had no complaints. Awesome looking exhaust. Just my two cents. Steve Snider

Re: Dana exhast?
 

Thanks for all the good feedback. The aluminum risers do not have the individual runners. That option is only available on our Vortech stainless steel risers. With the Vortech stainless steel risers the runner length is 27". We currently don't have anything for 5" exhaust.

Re: Dana exhast?
 

Here's some of requested technical data,

Surface area of a primary port on the manifold flange-
3.062" DMP Manifold
2.759" 1 7/8" tube header

Surface area of a primary port at the collector-
2.785" DMP manifold 4 ports collectively 11.14" area
8.9416" I.D. Tube header with a 3.5" I.D. pipe 4" O.D.
11.787" I.D. Tube header with a 4" I.D. pipe 4.5" O.D.

Normal tube header runner length is 15.5"
DMP exhaust have a 27" long runner length
Our primaries carry through the riser flange.