BARBELL PLUG, LS ENGINE OIL GALLERY, DOUBLE O'RING (EGM-501) Cathedral port Product Part Number Diameter Standard

Product Part Number Diameter Standard Length Trim Options / Notes VT–VZ Alloy MAF-less Boot V010091 4” / 100 mm 4 1/4” / 110 mm Can be trimmed down to 3 3/4” / 95 mm VT–VZ Plastic MAF-less Boot V010668 4” / 100 mm 6 1/4” / 160 mm Can be trimmed to 4 3/4” / 120 mm or 5 1/2” / 140 mm VT–VZ Plastic MAF Boot V010091 3 1/2” / 90 mm to 4” / 100 mm 2” / 50 mm Designed for MAF applications VE–VF MAF–Throttle Body Boot V010053 3 1/2” / 90 mm to 4” / 100 mm 2” / 50 mm MAF to throttle body connection Important: Please ensure compatibility with your conversion requirements before ordering

Estimated Torque Gain: 16

190" thick

Keep your hands on the wheel and select your map with the OEM cruise-control buttons

HOW TO ACTIVATE

BARBELL PLUG, LS ENGINE OIL GALLERY, DOUBLE O'RING (EGM-501) Cathedral port Product Part Number Diameter StandardOverview Improved Racing designed this billet aluminum rear galley plug (commonly known as the "barbell") for Gen III and IV GM LS series engines to improve oil flow and completely eliminate dirty engine oil from bypassing the filter. This part is recommended for replacing the plastic OEM plug in any engine build. Improved Racing's barbell features a second O ring that completely seals off the dirty oil from the clean oil, forcing 100% of oil flow