The XL21 VLX is a new breed of velocity stacks available to the industry. Not just new in terms of material, but manufacturing process also, it's the first 3 dimensional extruded breather system to be offered in the motorcycle world. This is a true 1 piece design that offers seamless edges with internal crankcase breather chambers. This part cannot be milled because of the design complexities so we extruded a Nylon/ABS polymer that exceeds even the OEM (plastic) tolerances in temperature, heat dissipation, and airflow.
•ABS & nylon combination weighing only 4oz.
•Spacers, gasket, mesh filter, bolts, and washers included.
•Works with all 2007+ EFI models and carb'ed models
•Comes in matte black, concrete grey, and wrinkle black.
•Dimensions: 4.5" (stack opening) x 2.5" wide (stack height) x 6.0" (base).