S&B CAI2-FMB-01D Dry Filter JLT Cold Air Intake Kit No Tuning Required 2001 Ford Mustang BullittJLT Next Generation Cold Air Intake kit for 2001 Bullitt in black textured plastic Finish. This replaced or our original Cold Air Intake kit in January 2012. Intake Tube Design Using the original JLT CAI as a guide, we molded, scuplted and perfected everything until we had the best looking, fitting and performing system you can buy. The new JLT tube is 4 1 4 inch ID, roto molded plastic to resist engine heat and keep the Intake air charge nice and