You need a tune. You are leaving HP on the table absent a tune. You also risk a lean condition which will cause significant engine damage. Now 25 people can come in and post how they ran LTs without a tune and nothing happened. Irrelevant, the risk of running dangerously lean is real and LTs without a tune loses much of the potential HP gain.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me
Two that wanna stone me
One says she's a friend of mine...
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