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Gear Shift PerformanceOriginalStandardTuned 28% Faster   Make & Model: CHEVROLET SilveradoEngine Spec: 6.6 V8 D DuramaxModel Code: Capacity: PS: HP: KW: NM:    Overview of the tool and installation guideThe all-new TCU...

Gear Shift PerformanceOriginalStandardTuned 28% Faster   Make & Model: CHEVROLET SilveradoEngine Spec: 6.2 V8Model Code: Capacity: PS: HP: KW: NM:    Overview of the tool and installation guideThe all-new TCU Tool is a...

Gear Shift PerformanceOriginalStandardTuned 28% Faster   Make & Model: CHEVROLET SilveradoEngine Spec: 6.0 V8Model Code: Capacity: PS: HP: KW: NM:    Overview of the tool and installation guideThe all-new TCU Tool is a...

Gear Shift PerformanceOriginalStandardTuned 28% Faster   Make & Model: CHEVROLET SilveradoEngine Spec: 5.3 V8Model Code: Capacity: PS: HP: KW: NM:    Overview of the tool and installation guideThe all-new TCU Tool is a...

Gear Shift PerformanceOriginalStandardTuned 28% Faster   Make & Model: CHEVROLET SilveradoEngine Spec: 4.8 V8Model Code: Capacity: PS: HP: KW: NM:    Overview of the tool and installation guideThe all-new TCU Tool is a...