K&N Hose 3.75inid X 2.25inl Reinforced fits_2006`GMC`Sierra 3500`WT~2007`GMC`Sierra 3500 Classic`SL~2007`GMC`Sierra 3500 Classic`SLE~2007`GMC`Sierra 3500 Classic`SLT~2007`GMC`Sierra 3500 Classic`WT Banks Boost-Tubes are larger than

Banks Boost-Tubes are larger than the factory pipe and designed to work with not only the stock elbow but also the new Banks Monster-Ram Gen 2 which will improve airflow

W/M12x1 FEMALE

TECH NOTE: Models equipped with PowerBoost hybrid engines will have lift height range of 0-2

The plastic OEM water pump impellers in the 6

The 5'' Basic System will clear 37'' tall tires and includes Fabtech Performance Twin Tube shocks

K&N Hose 3.75inid X 2.25inl Reinforced fits_2006`GMC`Sierra 3500`WT~2007`GMC`Sierra 3500 Classic`SL~2007`GMC`Sierra 3500 Classic`SLE~2007`GMC`Sierra 3500 Classic`SLT~2007`GMC`Sierra 3500 Classic`WT Banks Boost-Tubes are larger thanK&N rubber hose couplers are designed to connect intake tubes for custom do it yourself racing air intake applications or used as a replacement part. K&N couplers are constructed from high quality reinforced rubber and made to last. This coupler connects two 3 3 4 inch tubes and is 2 1 4 inches in length.