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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.


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  1. 22" Magnaflow..... 1 2 3 4

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  2. Rear Gearing and a Lift 1 2

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  3. 6.2 Exhaust Tip? 1 2

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  4. Direct injection engines 1 2

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  5. Anyone with a Z71 better check your gears 1 2 3 4 6

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