6.7 straight pipe help
 

I am wondering what size exhaust to get to straight pipe my truck. I am going from the turbo back, everything will be gone and dpf will be deleted. I just do not know what size is the best. 4" or 5"? and what programmer has the best tunes H&S or Smarty? and is there lope tunes?

4" is fine / EFI Live / No

I could use your stock exhaust if you dont want alot for it.....pm me

agree 100%

i can also hook you up with those parts and we do our own custom tuning

4inch is fine, but IMO the 5inch sounds better. A lot more people are using H&S over smarty. As stated by Dustin, EFI live is the best.


B.E.D.S.
Big Ed's Diesel Service

5" will be louder... 4" will flow plenty though

Thanks for all the opinions. One more thing, I was looking at the edge cts for use for the gauges instead of multipe ones. Since the edge plugs into the OBII port will plugging it up after i programed the truck affect it any at all? My bad im new to programming diesels

I know of a fe using the edge cts with a smarty, H&S and with EFI tuning.


B.E.D.S.
Big Ed's Diesel Service

I know of a few using the edge cts with a smarty, H&S and with EFI tuning.


B.E.D.S.
Big Ed's Diesel Service