This is a performance enhancing induction kit for the Subaru WRX STI with E257 2.5L turbo engine. This induction kit delivers increased air flow and induction noise over the standard restrictive air box. Whether this kit is being installed to a standard vehicle or to a already tuned vehicle, you can be sure of the positive performance gains this will deliver.

• Improved throttle response
• Black powdercoated heat shield and inlet pipe
• Dyno results: max gains 12-14bhp (this may vary dependant on vehicle)
• Easy to maintain dry pleated filter
• Cold air straight to the turbo charger

• Black powdercoated heatshield
• Black powdercoated inlet pipe
• Red pleated filter
• Silicone joiner
• Full fitting kit with easy step by step instructions

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number (UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.

MST-STI-1501

Manufactured by

MST Performance