Fuel Injection Performance Kits (FIPK®) contain a high air flow K&N filter with uniquely designed adapters. This creates a radius entry allowing the engine to ingest a greater volume of air compared to the factory intake system. Most FIPK's are street legal in all 50 US states and come with a 10 Year/ Million Mile Limited Warranty. K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable. Fits: Ford F Series, Bronco 1987-1995 L6 4.9L, V8 5.8L, V8 7.5L 1987-1993 V8 5.0L 2 & 4 Wheel Drive Product Style: FIPK Estimated Horsepower Gain: 5.33 HP @ 3654 RPM Type: Gen I Replacement Filter: RF-1012 CARB Exempt: Yes Weight: 6 lb (2.7 kg) Product Box Length: 9 in (229 mm) Product Box Width: 15 in (381 mm) Product Box Height: 9.13 in (232 mm) PRODUCT INSTALLATION GUIDE