
2001-2004 Duramax Twin Turbo Kit (422402)
Description
Industrial Injection compound twin-turbo kit for 2001-2004 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 6.6L LB7 Duramax. A complete kit built around a PhatShaft 62/65/14 high-pressure charger and a BorgWarner S474 atmospheric charger — fast spool-up paired with the airflow to hold tow EGTs in check and support up to roughly 850 HP.
Intended for towing-and-performance builds or street trucks running into the high power-range. Kit ships complete for install.
Features
- Compound Twin-Turbo Kit — LB7 Specific
- PhatShaft 62/65/14 High-Pressure Turbo
- BorgWarner S474 Atmospheric Turbo
- Fast Spool-Up & Broad Powerband
- Supports 350 HP up to ~850 HP
- Complete Kit for Install
- Part Number: 422402
Original: $5,371.22
-65%$5,371.22
$1,879.93Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description
Industrial Injection compound twin-turbo kit for 2001-2004 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 6.6L LB7 Duramax. A complete kit built around a PhatShaft 62/65/14 high-pressure charger and a BorgWarner S474 atmospheric charger — fast spool-up paired with the airflow to hold tow EGTs in check and support up to roughly 850 HP.
Intended for towing-and-performance builds or street trucks running into the high power-range. Kit ships complete for install.
Features
- Compound Twin-Turbo Kit — LB7 Specific
- PhatShaft 62/65/14 High-Pressure Turbo
- BorgWarner S474 Atmospheric Turbo
- Fast Spool-Up & Broad Powerband
- Supports 350 HP up to ~850 HP
- Complete Kit for Install
- Part Number: 422402













