06-05-2011, 08:05 AM
The Silent Service
Join Date: Dec 2010
Thanked 31 Times in 8 Posts
Feedback Score: 0 reviews
Howdy, and welcome to the ORG.
Biggest factor in the mileage of these trucks is how you drive them. Keeping RPMs under 2k, and boost under 10 psi helps a bit. What have you done to the truck so far?
An air filter will never pay for itself in the mileage department, and depending on where you are located the EGR Cooler delete ain't an option. The stock filter will support a build up to 500 RWHP, so unless you go big leave it on there.
I'd recommend exactly whats been working for me.
-Upgrade the EGR cooler to the unit from BPD once you are in need of one.
-Get a quality 4" turbo-back exhaust, Diamond Eye and MBRP are most popular.
-Get an Edge Insight style monitor with at least the EGT probe to keep an eye on everything on the motor. (Most importantly is EGT, ECT/EOT delta for oil cooler rebuild and prevention of the head gaskets from being blown)
-Get an SCT flash programmer, with custom tunes for your truck. This made the biggest difference for me. Any of the tuners mentioned on this site do a great job, I run tunes from Eric and IDP.
Truck in Sig:
Stock: 13.3 MPG comp / 15.0 MPG interstate
Street Tune: 14.6 MPG comp / 15.5 interstate
Race Tune: 15.3 comp / 16.5 interstate (driven for mileage)