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Panda Motorworks
Panda Motorworks Direct Port Water/Meth Injection Kit (Focus ST/RS)
From $ 1,049.99 USDUnit price /UnavailablePrecision Raceworks
Precision Raceworks Port Injection Kit - Focus ST/RS
From $ 949.99 USDUnit price /UnavailableRadium Engineering
Radium Engineering Fuel Filter Kit, 2016+ Focus RS
From $ 185.20 USD$ 194.95Unit price /UnavailableRadium Engineering
Radium Engineering Fuel Surge Tank Complete Kit, Focus EcoBoost
From $ 1,032.99 USDUnit price /UnavailableNostrum
Nostrum 2.3L EcoBoost Ford Focus RS Stage 1 bundle
$ 3,268.00 USD$ 3,598.00Unit price /UnavailableSnow Performance
Snow Performance 2.5 Gallon Reservoir (With Brackets)
$ 140.62 USDUnit price /Unavailable- 12% off
Nostrum
Nostrum 2.0L/2.3L EcoBoost Ford Focus ST / RS / Mustang Upgraded Direct Injectors
$ 969.00 USD$ 1,099.00Unit price /Unavailable - 4% off
Nostrum
Nostrum 2.3L EcoBoost Ford Focus RS High Pressure Fuel Pump Kit
$ 2,399.00 USD$ 2,499.00Unit price /Unavailable Mishimoto
COLD-SIDE INTERCOOLER PIPE, FITS FORD FOCUS RS 2016–2018
$ 220.99 USD$ 243.00Unit price /Unavailable- 9% off
Mishimoto
HOT-SIDE INTERCOOLER PIPE KIT, FITS FORD FOCUS RS 2016–2018
$ 334.99 USD$ 368.00Unit price /Unavailable - Up to 9% off
Mishimoto
PERFORMANCE INTERCOOLER KIT, FITS FORD FOCUS RS 2016–2018
$ 1,337.99 USD$ 1,472.00Unit price /Unavailable Radium Engineering
Radium Engineering Fuel Surge Tank Install Kit, Focus EcoBoost
$ 427.45 USD$ 449.95Unit price /Unavailable