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