Aeroflow high performance induction pipe is designed for the Subaru WRX and STi (2001-2007) models. This pipe adapter is a direct replacement for the restrictive OE airbox setup allowing for a huge increase in unrestricted air flow into the engine improving engine response and allowing the turbocharger to breathe easier. Featuring a large bell mouth on the one end to allow for a 6" pod filter to be clamped on (sold separately) and the OE MAF sensor can still be retained. Manufactured from high grade aluminium and anodised stealth black.