Base Manifold and Rail Kit for Lo Ram 300 620BK 300 600BK interior body parts 00 inch Emission Code 4 93356 FBHB 00 inch Emission Code 4 Header Finish Natural Header Style Y Pipe Primary Tube Dia Includes essential parts necessary to wire twin pump Mustang (12 153 12 175) or Challenger Charger (12 154 12 176) modules to a vehicle The Holley LS1 2 6 Lo Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1 2 6 (cathedral port) cylinder heads Brand Holley EFI Color Black Emission Code 3 Engine GM Small Block Gen III IV (LS Based) Finish Cast Fuel System Type EFI Manifold Type Lo Ram Product Type Manifold Warranty Limited 90 Day