New Dyno #'s
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Staging Lane
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Joined: Sep 2005
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From: west palm beach, fl
hey guys i just got my whipple install and dynoed it had 336hp and 387ft tq. i was so excited. the only other mods i have are cat back exhaust and e-fans. what do u guys think are these good numbers for 1999 5.3L silverado?
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