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The Focus ST's standard airbox can be found seriously lacking when the power levels have been pushed up by a re-map and other modifications
pressure and volume
The end tanks are designed such that the standard boost hoses can be retained
S-U-MM-I-T Racing Equipment upgrades your chassis performance and there by improving you cars handling and driving experience
2.0 & 2.3 EcoBoost Piper Single Valve Spring Kit Mishimoto The Focus ST's standard airboxPiper valve springs are Designed for Stg1 and Stg2 camshafts and are also suitable for use with stock camshafts. Rate: 42 N mm ~ 242. 00Lb Inch Seat Pressure: 22. 00KG ~ 48. 00 Lb f Installed height: 38. 00mm Valve Spring Features: Wound from high quality German steel Steel retainer set included
US$ 39.99
US$ 19.95
US$ 2000.00
