Click on the links below to download PDF copies of installation instructions for the Hewitt-Tech bypass modules and other products. Our bypass modules also come with color-printed copies of our instructions for your convenience. Call us TOLL-FREE at 1-800-307-7671 for more details about installing the Hewitt-Tech bypass modules and other products.
Module Installation Instructions:
Gen 2 (3-Valve) Installation Instructions:
*These are the 3- Valve 4.7L vehicles that have 1x air pump, 1x EASV and 2x #2 ASV underneath the intake. These Gen-II bypass kits are not 100% plug and play. The Gen-II unit on these vehicles also requires 3 wires to pass through the firewall to make connections to the ECM wiring behind the glovebox.
Gen 1 Bypass Module Installation Instructions:
Gen 1 (V36) 2005-2007