Thread: Early 99 tunes????
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Old Mon, May 31st, 2010, 07:40 PM
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Quote:
Originally Posted by freeride707 View Post
ok. thats what i thought but with your tuning the factory benefits of having pmt1 dont matter?

and what exactly is done to make the truck quiet on whisper mode? is it drivable in this mode? say to leave the neighborhood early in the morning etc

The shifting with the XLE4 program we would use on your truck would be much better than stock but the deficiencies that the E99 trucks have is not fixed in the tuning.

Yes, the truck is driveable in Whisper Mode as Dave pointed out. It's not going to hurt anything but you will get a lot of white smoke with a cold engine.

Thanks Dave!
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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