JB4 Performance Tuner for Mercedes-Benz C63, E63, GT, GLC, Including S models

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Description

JB4 Performance Tuner for Mercedes-Benz C63, E63, GT, GLC, Including S modelsPower gains of up to +100whp and +100wtq to your AMG The JB4 is simply the most powerful and feature rich tuning system available for your AMG. Using the same technology as our advanced tuning systems for the BMW M3 and M5 models, our new AMG C63 system delivers factory smooth performance increases in a package that can be installed or removed in under an hour. Now includes the JB4PRO adapter and free app built in! The JB4 includes many features not

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the adapter comes down with it

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INSTALL GUIDES

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