Radium Engineering 2013+ Ford Focus ST/ 16+ Focus RS Port Injection Kit 2017-alfa-romeo-4c-base-esi7695177 The 3" diameter Borla(r) Cat-Back(tm)

The 3" diameter Borla(r) Cat-Back(tm) system has a side exit (passenger) featuring the classic S-Type sound level with no drone inside the vehicle

and also allows this kit to fit on both US and EURO Mass Air Flow Sensors

after-axle replacement tank

Thankfully

and out in the field to ensure the components and calibration deliver consistent performance in all conditions

Radium Engineering 2013+ Ford Focus ST/ 16+ Focus RS Port Injection Kit 2017-alfa-romeo-4c-base-esi7695177 The 3" diameter Borla(r) Cat-Back(tm)Radium Engineering 2013+ Ford Focus ST 16+ Focus RS Port Injection Kit This Part Fits: Year Make Model Submodel 2016 2017 Ford Focus RS 2013 2017 Ford Focus ST 2015 2017 Ford Mustang EcoBoost 2015 2017 Ford Mustang EcoBoost Premium