The new design Stage 2 induction kit that works perfectly with the standard Focus ST250.
Expect to see gains of 5-10bhp compared to the original air box.
Enhanced induction sound, great looks and loud re-circulation dump-valve noise on let off.
 
Key Features:
Removes original plastic, restrictive air box
Adds power, torque, response and driving experience
Enhanced induction sound and turbo re-circulation noise (dump-valve ‘psssh’)
Free flowing air filter & optional K&N dry charger filter cover
CNC MAF sensor boss with AS engraved logo
Powder coated alloy heat-shield with 80mm cold feed pipe which directs air to bottom of filter
Adds style to your engine bay
Easy fitting
Conclusion. It’s easy to fit, looks great, sounds even better, doesn’t cost the earth and can be put back to standard quickly (for warranty purposes)
PLEASE NOTE: Only available in black