diesel_fan
New member
Well seems like when it rains it pours. On the way home today I blew the drivers side up pipe, I'm needing to order some HD's soon who's should I go with?
I would agree it would be wise to do the manifolds at the same time. Here is some pics to give you an idea of the kit. You can see they are much straighter with fewer bends. The bends that are there are smoother than stock. Plus a big benefit is that there is less volume to pressurize overall compared to stock, especially with the catalyst pipe gone. The manifolds are wicked heavy and thick. But they bend very nicely at each port to throw the exhaust flow back towards the up pipe. Stockers have nothing of the sort, just one wide open chamber. Don't be fooled by the bd manifold size because the volume of the bd manifolds are only slightly more. (I did some water/measuring cup tests for curiosity sake on the larger manifold and the stock manifold+larger elbow uppipe). The kit also comes with all the gaskets, bolts, spacers, ac line adapter (which is optional IMO). Also you should wrap whatever you buy with a good high temp header wrap.
the main benefits of the manifolds are much better flow than stock and the fact they use the 6.0 style where the 90* bend is in the casting. the 6.4 stock manifolds dont have the bend in the casting and the 90* turn is made in the up pipes themselves, a weak point. not too mention high quality stainless and bellows. my cab was off so i did them , because i was already there, very happy with the fit and quality, and glad i was able to use something i sell alot of .
If you still have the Egr feed pipe installed it could be the bellow in that pipe and not an up pipe
Haha I think we've all been there with the Egr pipe bellow leaking, now once you move your block off plate up top, the Egr provision coming off the pass up pipe is going to crack at the weld in a few thousand miles more than likely, it's from heat and pressure getting trapped right there, same thing with the bellow.Wow wow I said that first! Lol
Glad it's an easy fix Diesel Fan! Just move your block off plate, tap for eps, and make sure to keep the eps tube attached when reinstalling. Spinning it around works best.
The Egr provision coming off the pass up pipe is going to crack at the weld