PERFORMANCE INTAKE SYSTEM Improves airflow up to 20% over stock High-flow reusable 5-layer cotton/stainless steel mesh filter for superior filtration Up to 18 horsepower gains without any other modifications! Mandrel-bent large-diameter tubing is powder coated inside and out. Easy to install with ordinary hand tools. Applications:1997-2002 Ford F-Series Pickup 4.6L; 5.4L (exc. Super Duty),1997-2002 Ford Expedition 4.6L; 5.4L (exc. Super Duty)

BIG-BORE PISTON AND CYLINDER KIT The ultimate performance kit from an industry leader! A must for every serious engine builder Complete with strong, extra-thick cylinders, FORGED pistons, rings, pins and clips For standard 1300-1600cc engines. Some machining required. Applications: All Makes All Models, All Makes All Models

STREET PRO PERFORMANCE HEADS Over 50% stronger than stock heads from a valued leader in factory performance heads! Big ports are cast right in...standard! Long reach 3/4" spark plug bosses The amazing performance gains you'll get plus the low cost make these heads a must for anyone looking for something "extra" without spending a fortune. Added material around combustion chambers. Complete with stainless steel valves. Precision machined and completely assembled to exacting specifications to deliver instant performance without modifications. For all 1300-1600 engines. Applications: All Makes All Models

BIG-BORE PISTON AND CYLINDER KIT The ultimate performance kit from an industry leader! A must for every serious engine builder Complete with strong, extra-thick cylinders, FORGED pistons, rings, pins and clips For standard 1300-1600cc engines. Some machining required. Applications: All Makes All Models, All Makes All Models

SUPER DUTY LOAD-ASSISTING ADJUSTABLE AIR SPRINGS For rear leaf springs on trucks/SUVs hauling heavy loads or used commercially Easy do-it-yourself installation with simple hand tools The best way to prevent trailer and body sway, a rough ride, vehicle bounce or bottoming out when hauling a heavy load or towing. Adjust air springs to truck's load condition for improved driving comfort and control. For excellent leveling support, 2 nylon-reinforced neoprene bellows, a dramatic advance in air spring design, support big loads to provide up to 5,000 lbs. of leveling capacity. Inflate or deflate springs to adjust spring rate, restore ride height and stop bounce, dip and vehicle sway. Use service station air hose to inflate springs or order an on-board air supply system (sold separately). Never exceed manufacturer's recommended gross vehicle rating. 2 air springs, 2 inflation valves, all fittings, air lines, mounting hardware and installation instructions included. Sold in pairs. Applications:1988-1998 Chevrolet C/K Pickup C1500 2WD Extended Cab,1988-1998 GMC C/K Pickup C1500 2WD Extended Cab,1988-1998 Chevrolet C/K Pickup C1500 2WD Extended Cab,1988-1998 GMC C/K Pickup C1500 2WD Extended Cab