hawaiianstyle Posted August 2, 2009 Report Share Posted August 2, 2009 I've been reading about the new Sonnax Performance Pack with servos and it sounds pretty good. Has anyone installed this in a 4L70E and how does it shift? I only plan on doing bolt-ons and maybe a small cam, will this help my trans or should I just get a FLT level 5 or 7. Quote Link to comment Share on other sites More sharing options...
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