Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RMP street driven power. Dual-plane high-rise intake with 180 degree firing order. Produces incredible top-end horsepower. Retains good throttle response and acceleration. Includes standard oil filter, PVC and A/C accy bosses. Not for exhaust-heat chokes- no exhaust crossover. Product Features:Based on Performer RPM-Series with Unique Air GapAir Gap Cooler and Denser Mixture for More PowerDesigned for 1500 to 6500 RPM Street-Driven PowerDual-Plane High-Rise Intake w/180 deg Firing OrderProduces Incredible Top-End HorsepowerRetains Good Throttle Response and AccelerationIncludes Std Oil Fill ; PCV ; A/C Accy BossesNot for Exhaust-Heat Chokes - No Exhaust Crossover