Rally Armor Basic Mud Flaps WRX / STI (2002-2007) Mazda Perrin uses an OEM type

Perrin uses an OEM type of triangular BOV flange for a stock-style WRX & STI blow off valve and is positioned to reuse the stock recirculation tube

and then they design the intake tubing and diameter around those specifications for the most efficient and only tuned air intake system in the market

The aluminum pipe is a direct replacement of the factory piece where the air intake filter box is retained in its original position

Using the stock mounts keeps the cost and complexity down and allows for TUV certification

1994-2009 Legacy

Rally Armor Basic Mud Flaps WRX / STI (2002-2007) Mazda Perrin uses an OEM typeFor practical protection against common road debris, stones, mud and grime, Rally Armors Basic mud flaps are affordable alternatives for Subaru Impreza WRX and STI owners interested in a flap that will protect and deflect using direct application hardware. These cost efficient thinner gauged black polyblend mud flaps are treated to resist color fade and are finished with the Rally Armor logo in black. Ideal for temperate conditions and environs (see