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The AEM 21-713P Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicles restrictive factory air filter and air intake housing
8 Super Duty 4WD Description_ASM Front S4K FMSI D824 2003 thru 2004 FORD F250 (inc Super Duty) 6
Carbureted Fuel Pressure
Backed by Air Lift's two-year limited warranty and 60-day
Precisely machined for minimal balancing adjustment
APR Premium Braided Interlocking Flex Section - 63.5mm (2.5") (EXH0224) 4008 The AEM 21-713P Performance ColdAPR's premium flex sections are now available! Perfect for the do it yourself enthusiast fabricating a custom exhaust system, these flex sections are designed to stand the test of time. Internally the flex section is fully sealed with a corrugated interlocking lining that improves flow and reliability. Externally, the flex section features a low profile design with minimal braiding material. This eliminates common issues with other designs that can