Roush Performance Exhaust System / Air Intake Assembly / Computer Chip Programmer Kit 422183

Unlock the full performance potential of the EcoBoost Mustang, adding gains of 34 horsepower and 37 lb-ft of torque with the ROUSH Performance Pac Level 2. Included in the Performance Pac Level 2 is the newly re-designed ROUSH Performance Cold Air Intake, ROUSH Axle-back Exhaust Kit, and a ROUSH Calibration for the vehicle's PCM. The cold air intake replaces the restrictive stock air intake, unlocking power and fuel efficiency. For a sportier driving experience, the ROUSH calibration is optimized to provide more boost and improved throttle mapping. The ROUSH Performance Axle-Back Exhaust Kit included in this system features polished dual-wall exhaust tips embossed with the ROUSH logo and dual single-tip high-flow mufflers. This Performance Pac includes the ROUSH 3-year/36,000-mile Limited Powertrain Warranty. 50-State emissions-legal on 2018-2020 Mustangs (CARB E.O. #D-418-37).