Twins with headers & up-pipes

[bcjoe]

Has anyone with nathans big kit used ricks headers and pipes? That monster 5" downpipe doesn't leave much room and I don't want to buy something that won't fit. Thanks

 

[LBZrcks]

Moved into here.

 

[TrentNell]

Has anyone with nathans big kit used ricks headers and pipes? That monster 5" downpipe doesn't leave much room and I don't want to buy something that won't fit. Thanks

I have them on my truck , they fit fine , it is tight though and there is not much clearance between the down pipe and the up-pipe flange but they fit with out issue, I seen a drive pressure drop , a good increase in part throttle crusing power , very nice improvement in spooling, funner to drive the truck, and picked up some power too.

 

[bcjoe]

Which set do you have on your truck?

 

[TrentNell]

Which set do you have on your truck?

The stainless headers with 2" up-pipes .

 

[ChevyDieselLLY]

i wonder how well the manifolds fit. and what kind of gains are seen with those

 

[NJ_LLY]

I would love to know how the cast setup works with them.

 

[SDP]

I've got the Castflow's, they were definitely a good addition. Part throttle gains were the most noticeable, spoolup was improved as well and drive pressures dropped. The manifold to up pipe flanges just barely clear the 4" downpipe that I made, otherwise the fitment is great. They are worth the money IMO.

 

[turk walker]

I've been running Rick's uppipes w/ stock manifolds on mine.
like trent said close fit w/ the 5" exhaust but doable.

been thinking about getting headers next.