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shafroshortstacks

  1. E39 M5 and E52 Z8 Discussion
    I made a few sets of my ShafroShortStacks back in December that didn't seem to gain much interest outside of the FB group. So I had a chance this weekend to put them on a dyno for some testing. Below is the story and results. "We got to test my short velocity stacks on the dyno yesterday and...
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