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Until I see independent testing, I call BS on their gains. I've been waiting for a few months for a response to my email & still nothing. If it was what it truly is cracked up to be, I'm sure i would've heard back by now.
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2013 IOM 2SS/RS LS3, Rotofab, TSP 1 7/8 headers, BTR valvetrain, GPI SS3, CSP tune, 490rwhp/455rwtq
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