For use with larger carburetors, comes complete with both single and dual stage reeds, stuffers, gaskets and reed cage. Most advanced intake design with Teflon coating for smooth fuel flow and MAXIMUM RPM! Can be used with or without oil injection and comes ready for boost bottle installation. Part Number: DP014000 (50cc & 90cc) For use with: Flat Slide Big Bore Carburetor (28mm for 50-70cc) Flat Slide Big Bore Carburetor (30mm for 80-125cc) The following parts are recommended for even more performance: Super Intake Boost Bottle (blue) -or- Super Intake Boost Bottle (chrome)