That's very likely due to your adrenaline pump on stock IPR mapping (or IPR mapping for the tunes on your TS chip that is set higher than stock for a stock pump).

ya, that has nothing to do with your fuel pressure. Give PHP a call about some new tunes for your chip...

What is itp?

ITP is now Sinister Diesel.

Stephenjr, I'd get your tunes adjusted. Who is doing your tuning?

beans diseal does my tunes. Are they any good? Should i try someone else?

Nothing wrong with Beans tunes.

Just let them know of your concern. They'll make it right by you!

yea deffinately talk to beans they will adjust your tuning.. and as far as the 7.3 is concerned one of the TOP tuners in the industry right now.

As is Power Hungry Performance!!! :tu: