Throwing Codes with upgrades.

7.3Kiraly · Nov 13, 2012

I have a 02 powerstroke. Have the 7.3 in her with the duals at the rear. not even at the 140km mark on it. Been looking to start doing a few upgrades but dont know where to start and what to expect for the outcome
I was looking to start with 5 inch exhaust straight front to back and a cold air.
a light tow tune too.
My concerns would be throwing a code with the straight echaust, will it fit too or will i have to go with a 4 inch down pipe.
What is a good tune to look for. Not wanting the huge ponys but more for fuel economy?

stroker2 · Nov 13, 2012

No codes should be thrown at all. Put a straight pipe on it if you want or you can do a 4" exhaust. Yes a 4" will fit just fine. Put a custom tuned chip on it from swamps diesel, dp tuner, gearhead, elite, diesel innovations, etc

bad12jr · Nov 13, 2012

Whs^^^ plus gauges.

Sent from my x2 somewhere

dustinz85 · Nov 13, 2012

:whs: a 4 inch dp will def fit, im not sure that anyone even makes a 5 inch dp for a 7.3 :shrug:

Lang · Nov 14, 2012

I believe they do just have to cut the firewall

7.3Kiraly · Nov 18, 2012

Ive been looking on XDP and they sell full 5 inch exhausts for the 7.3, i dont want to start hacking the firewall though. Safer with a 4 inch dp and 5 inch back. Also trying to figuring if i should go with a dry filter or oil based one. Ive heard of dirt ending up in the oil pan coming through the oil based filters... does the filter type matter?

7.3Kiraly · Nov 18, 2012

Anyone else hear of this???:shrug:

under pressure · Nov 18, 2012

Improper care of a high end oil type air filter is bad. I live in AZ, and clean /oil my filter every other month.

02BigD · Nov 18, 2012

Never seen a 5" dp, and have a difficult time believing one will fit. Lots of people run both types of filters, search will provide you with opinions.

Magnum PD · Nov 18, 2012

7.3Kiraly said:
Ive been looking on XDP and they sell full 5 inch exhausts for the 7.3, i dont want to start hacking the firewall though. Safer with a 4 inch dp and 5 inch back. Also trying to figuring if i should go with a dry filter or oil based one. Ive heard of dirt ending up in the oil pan coming through the oil based filters... does the filter type matter?

Just get the 6637 air filter

Justin@DP-Tuner · Nov 18, 2012

There is no real benefit to 5" exhaust at sub par HP levels. A 4" system will do just fine and fit great. As far as filters go... I am not a big fan of the oil type filters. If you clean and over oil it you could end up with issues. Just get a dry filter and change it at your normal intervals.

TyCorr · Nov 19, 2012

5" sounds different. There are no 5" downpipes. 5" systems use 4" dp that are necked up to 5" pipe. Some big frame turbochargers may have 5" dp. A 5" system compared to a 4" straight for straight the 5" is louder. I have heard that 5" drones but I find that usually mufflers resonate at frequencies that create the droning.

I prefer the 5" on most trucks.