Attention: TDR Forum Junkies I just had the Glacier 392 kit with big line kit and 2 micron filter installed. What a difference over the stock pump. Just did 3400 miles with it and here are my findings: my quad box performed better, the truck pulled like never before (only 5000 lb trailer on the back), mileage went up from 3/4 - 2 pg (speed dependent, hand calculated). Best part, if it ever fails just unplug the electrical, put back to the stocker and you are up and running again (only $120. 00 for replacement pump). Best mod beside tc and vb I have done. I did the change for reliability as i am on the road 30-40k per year. Did not expect the performance gain but it was VERY noticable, so obviously the stock pump really limits this motor. Made the quad std box act like a different (and better) unit, much more bottom and mid range. Rip at Source Automotive in Portland did a very clean install and no problems. I would assume a FASS or other system would work equally well as we are talking more fuel to the CP3. We normally run the 100hp setting but found the 60hp more than adequate with the new pump. After the install the stock pump showed 8psi and the 392 was 22psi @ idle. I honestly think that some of the guys (like myself) with really poor mileage or those not seeing real strong gains with their boxes have weak lift pumps and would gain a lot with this modification. It effects more than one would think.
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