LT1 Bolt-Ons
Topping off our induction system is a massive BBK Performance 58mm throttle body that clearly dwarfs its 48mm factory counterpart. We skipped over the 52mm upgrade since the larger throttle body wouldn't be detrimental to performance; the mass-airflow meter will correctly meter the air/fuel ratio for the incoming air. The bigger throttle body will allow for future upgrades without it having to be replaced twice. View Related Article
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