ECOGARD XA4852 Premium Engine Air Filter Fits Chevrolet Corvette, Camaro / Pontiac Firebird / Chevrolet Express 1500, Express 3500, Express 2500 / GMC Savana 3500, Savana 1500, Savana 2500 COMPATIBLE with 1985-2004 Chevrolet Corvette, 1998-2002 Chevrolet Camaro, 1998-2002 Pontiac Firebird, 1996-2000 Chevrolet Express 1500, 1996-2002 Chevrolet Express 3500, 1996-2002 Chevrolet Express 2500, 1996-2002 GMC Savana 3500. IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and long term power. AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine. FACTORY FIT FOR EASY INSTALLATION. Replaces: FRAM CA3914 Purolator A34852 WIX 46144 OE 25042562. SPECIFICALLY ENGINEERED AND TESTED for Chevrolet, Pontiac, Chevrolet, GMC, Chevrolet OE (original equipment) engine air filter's fit, form, and function.