Ford Racing 2015-2017 Mustang 2.3L Ecoboost Calibration Kit Exhaust- Mufflers & Tips>Y Pipes delivering a smooth soundtrack throughout

delivering a smooth soundtrack throughout the range

try our Johnny O'Connell signature series shock upgrade

Pre-assembled struts

Grade 8 hardware and installation instructions

Hardcore enthusiasts who add Stage 1 or 2 chip upgrades will find this boost to the Stir's lung capacity vital to unlocking the ECU's full potential

Ford Racing 2015-2017 Mustang 2.3L Ecoboost Calibration Kit Exhaust- Mufflers & Tips>Y Pipes delivering a smooth soundtrack throughoutMake a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs, a tune and cold air intake the Focus ST is able to experience an increase of 90 peak torque at 2800 RPM on 93 octane fuel. There is a significant torque increase all the way up to 4200 RPM. Also, plenty of horsepower is gained throughout the RPM range making overall driving more exciting. Also, revised