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  1. 3.0L Duramax
    Is it just me or is the exhaust brake almost totally useless? Yes I am referring to using it in the tow/haul mode.
  2. 6.5/6.2 High Performance Engine Modifications
    I like my truck (1993 6.5l 5spd) but it really isn't that powerful. I tow regularly, the truck tows nice, but when going up a hill it doesn't make a whole lot of power. 70mph is about 2000rpm, which I thought would be right in the sweet spot for power but I find I am often on the floor...
1-2 of 2 Results