Focus ST MK2 ST225 Airtec Stage 3 Intercooler Kit R8 RacingLine's new Cotton Filter 'Oversock'

RacingLine's new Cotton Filter 'Oversock' combines the best of both filter choices

Start with OEM+ Stage 1

Our new Billet Underbody Braces replace these weak braces with intricately machined T-6061 aluminium replacements

and will be the perfect compliment to our upcoming Cold Air Intake too

Focus ST MK2 ST225 Airtec Stage 3 Intercooler Kit R8 RacingLine's new Cotton Filter 'Oversock'We have taken our huge Focus RS Intercooler and modified it to fit with the ST Bumper & then taken our massive 2. 5" cold side Pro hose (intercooler to inlet manifold) and a Pro hose boost pipe from Intercooler to ST standard metal pipe, making this kit the best value for money option for 300+ bhp Focus ST's Designed & Proven to extract maximum gains from your 300+ bhp ST, this kit would compliment the DreamScience Turbo X upgrade, Jamsport or a