Florida-based tuner RENNtech is now offering a tuning package for the Mercedes-AMG GT Black Series. The company’s R3 package boosts performance to stratospheric levels. The RENNtech R3 package for the AMG GT Black Series consists of an ECU upgrade, stainless steel downpipes, BOV adapters, BMC air filters, Stage-2 turbo upgrade, and an upgraded performance clutch […]
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