6.4 Downpipe with ball/socket

**powerstroker67** · #1 (**permalink**) 07-01-2009, 09:47 AM

We have been working on finishing our down pipe for these 6.4 trucks and coming up with the tooling to make the ball and socket to connect to the DPF back pipes/or exhaust has been a real issue. Tooling has to be made to make the ball end for our and other CAT/DPF back pipes or exhaust to bolt up. Two prototypes are on the way back for testing and fit. Our intension is to build a downpipe that will bolt to existing exhaust/pipe configurations without making the customer purchase a new exhaust system. More info will be posted as soon as we are done.

**Rudy's diesel performance** · #2 (**permalink**) 07-01-2009, 10:51 AM

Great news for people who already have a DPF/CAT Delete pipe and want to purchase the downpipe as well!

winchester33 · #3 (**permalink**) 07-01-2009, 07:02 PM

i'm interested. i'd like to buy a full turbo back exhaust while i'm at it.

08SUPERKING · #4 (**permalink**) 07-01-2009, 07:37 PM

great news and how much will it coast...

**dieselkane** · #5 (**permalink**) 07-01-2009, 10:02 PM

How necessary is a down pipe???

**powerstroker67** · #6 (**permalink**) 07-02-2009, 01:32 AM

It doesn't seem to be stopping people from making BIG hp but after looking at the inside of the stock one it has to make a difference. The stock downpipe is very heavy and double walled(pipe inside another pipe). The inside pipe is not mandrel bent and has wrinkles or ridges in it that will slow the flow.

DSL_PWR · #7 (**permalink**) 07-02-2009, 04:16 AM

Have you actually measured the coefficients of drag on the non mandrel bent pipe on the inside of the downpipe? What degrees are the ridges or have they been measured?