Wiseco Piston Kit for 1995 03 Honda CR125R 54.00mm Cylinder RE908M05400 1990 Polaris Trail Boss 250 2x4 Style: for 12in Ape Hangers Style: for 12in Ape Hangers without ABS Product Details Product Line Arlen Ness Stage I Big Sucker Air Cleaner Part Number 18 324 Fitment Type Model Specific Fitment Use Type Unit Sale Qty Kit Style Stage 1 Air Cleaner with Pre Oiled Red Filter Size Position Material Aluminum Color Chromed Stainless Steel Finish Polished Chrome Aluminum Backing Plate Exhaust Configuration Muffler Size Muffler End Tip Style California Emissions FALSE Product Disclaimer Fitment Note Fitment Note Fitment Note CARB EO D 639 4 states that the Arlen Ness Stage 1 Big Sucker has beenfound not to reducethe effectiveness of the applicable motorcycle pollution control systems and Damage Return of a piston rings due to ordering the wrong size will not be accepted improved pinbore for decreased wear and bore deformation