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Bumping this old thread to echo what the OP originally stated. I just switched to a full JB4 and immediately I could tell the difference shifting in sport mode, it's so much smoother with the JB4.
The shifting with the stage 1 never really bothered me, sometimes it seemed like the car was "confused" when to shift or would shift really hard for no reason. After some testing last night, that didn't happen at all with the JB4.
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They are spelled BRAKES not breaks!!!! Oh FFS, not another spark plug thread!
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