Roush 421827 Cold Air Intake System Kit for 15-17 Ford Mustang 2.3L I4 Ecoboost.
- ROUSH Cold Air Intake System
- Increased performance by +29.6 RWHP and +27.89 ft-lbs RWTQ with no calibration required!
- Improved throttle response
- Includes step-down coupler for use with larger turbos
- 74% less intake restriction
- CAD-designed for optimized hood sealing and performance
- Easy installation (no drilling or cutting required)
- Reusable oil-free air filter
- Superior filtration properties
- Includes all necessary hardware
- 50 State Legal for 2015-2017 Model Years: EO #D-418-30
