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Not for sale or street use in California.The K&N 77-2587KS high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit specific Ford Explorer models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system. By allowing the engine to inhale more air means more usable power across the RPM range. The chrome topped K&N high-flow air filter is a cone shaped air filter and can be used for up to 100,000 miles before servicing is needed (depending on driving conditions). To keep engine heat at bay a heat shield is included and is installed in the original air box space. The aluminum intake tube has an attractive silver powder-coated finish that's made to last. The factory inlet air temperature sensor mounts directly onto the intake tube. Engine sound is also enhanced with more aggressive and deeper acoustics during acceleration. Some K&N 77 series air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.
| Air Filter Outlet Shape | Round |
| Clamp Material | Stainless Steel |
| Clamp Style | Regular |
| Clamps Included | 5 |
| Couplers Included | 2 |
| Estimated Horse Power Gain | 11.07 HP @ 5433 RPM |
| Filter Color | Red |
| Filter Material | Cotton Gauze |
| Horse Power Increase | 11 HP |
| Intake Pipe Color / Finish | Silver |
| Intake Pipe Material | Aluminum |
| RPM | 5433 |
| Replacement Filter | RF-1048 |
*Some manufacturer restrictions apply.
K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and air intakes in over 30 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. The distinctive K&N logo represents performance from one of the original performance companies.
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