Search results
-
R
Exhaust
I also have a question on new exhaust. I have an 04 F250. I pull a 10,000 RV. I already have the guages installed and a programmer. I want to go the 4" exhaust route. I have been told to go with a 3 1/2 " down pipe and others say 4" some thing to do with back pressure. Also to leave the cat...- retiredin1993
- Post #8
- Forum: 7.3L PowerStroke Power & Performance
