Air Filters

£ 295.00
AS Performance Stage 2 Induction Kit Focus MK3 ST Facelift / Pre-Facelift

Stage 2 Induction Kit for the Focus ST 250

The new design Stage 2 induction kit that works perfectly with the standard Focus ST 250

Expect to see gains of 5-10bhp compared to the original Airbox.

Enhanced induction sound, great looks and loud re-circulation dump-valve noise

£ 90.00
Focus ST250 RS Style Induction KitGenuine Ford Focus MK3 RS Airbox which acts as a direct fit to replace the standard airbox in the ST250. Comes with optional extras including a genuine K&N 57S Performance filter and a Pro-Hose Silicone induction hose.
£ 240.00
J1 Automotive Ford Focus Mk3 Air Intake Kit Incl ST250 & RSThis J1 Automotive Performance Focus Mk3 Air Intake Kit replaces the stock Air Cleaner and inlet duct. Once installed we can see massive reductions in system restriction by over 70% and improvements in intake noise and performance when compared to the standard air box.

Fits all model MK3 Focus

£ 159.00
K&N's 57S Performance Airbox Lid & Performance filter upgrade - 57S-4000

K&N filters have just launched their Gen1 Air box lid modification complete with K&N filter element, bolt on power in a matter of minutes.

TUV approved for Europe, fits lots of applications.