Thread: 08-10 370Z MagnaFlow Catbacks Super cheap
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Old 12-07-2011, 12:55 AM   #39 (permalink)
ERZperformance
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Originally Posted by 90 ST View Post
any idea on HP gains with this set up?
I don't think magnaflow dyno this set up yet but usually it's only 10-12 HP on most catback exhaust.
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