Air Filters

£ 295.00
AS Performance Stage 2 Induction Kit Focus MK3 RS

Now Available. Stage2 Induction Kit for the Focus MK3 RS

The new design Stage 2 induction kit that works perfectly with the standard Focus RS MK3

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

Enhanced induction sound, great looks and loud recirculation dumpvalve noise on let off. And only £295.00

£ 89.95
Focus RS MK3 Stage 1 Induction KitK&N's 57S Filter element only, is supplied with a rubber bung which once removed increases waste gate turbo chatter noise! it can be easily replaced if you require a quieter driving experience.
£ 20.00
Genuine Ford Focus MK3 RS Air Filter
  • Direct fitment
  • Genuine OE Ford
£ 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