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Better Flow for More Power. An RedRock 4×4 Cold Air Intake is a great way to improve the power and performance of your 2003-2008 5.7L Hemi V8 RAM 1500. By replacing your RAM’s restrictive factory intake with a high flow filter assembly you will see and feel a noticeable increase in rear wheel horsepower and torque. This RedRock 4×4 Intake not only improves airflow for an increase in power but it will also add a show winning appearance to the engine bay with its brightly polished aluminum intake tube. No Tune Required. RedRock 4×4 engineered their Cold Air Intake to improve the performance of your V8 RAM without the need of reprogramming your computer. By utilizing flow dynamics this Intake will increase power using the original factory tune. Even though a re-tune is not required for operation AmericanMuscle recommends a custom tune to reprogram the vehicles computer Ecu to get the best possible performance from this Cold Air Intake. Reusable Air Filter. The included high flow air