545RFE upgrades
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Thread: 545RFE upgrades

  1. #1
    Grasshopper
    Join Date
    Jan 2017
    Posts
    1
    Member #
    22137
    Vehicle
    2004 Durango SLT
    Mods
    K&N CAI, MSD Blaster Coils, MSD 8.5mm Wires, Jet Stage 1 performance Module

    545RFE upgrades

    I own a 2004 Durango with the 5.7. Backed by the 545RFE. Looking to seeif any has used the Sonnax Line Booster and/or the Transgo "ReprogrammerKit" P/N 45RFE-HD2. I have read up on what the each do. My question is hasanybody used them and used them both on the same transmission?

  2. #2
    Durango Guru
    Join Date
    Feb 2014
    Location
    Atlanta
    Posts
    1,752
    Member #
    3912
    Liked
    231 times
    Vehicle
    2014 Citadel Hemi, 2001 SLT+4.7L
    Mods
    4.7L HO cams, Fastman TB, Superchips, R/T rims, Street Scene front bumper cover
    I used a Superchips tuner with my 45rfe and loved how it shifted at WOT compared to stock..much quicker or less lag between shifts...normal driving no noticeable shift difference which I liked.

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