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Old 01-17-2013, 12:56 PM
twin turbo twin turbo is offline
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Join Date: Mar 2009
Cobra Make, Engine: FFR
Posts: 388
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How much power are you making and what is your rearend gearing? Back when I was making 420 rwhp with 3.08 rearend gearing the 555R's worked well and are good for 15k miles.
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