The Perrin Performance short ram intake system for the 2002-2007 Subaru WRX/STI features powder coated aluminum piping with MAF sensor housing, mounting brackets, and a high-flow dual-stage foam air filter. For the WRX/STI, Perrin's short ram intake uses proper MAF sizing and placement to optimize power, maintain safe air/fuel ratios, and extract as much power as possible. Perrin's dual-stage foam air filter can be recharged using the Perrin filter cleaning kit, sold separately.
The Perrin Big MAF Short Ram Intake is similar to the standard short ram intake, but has larger diameter piping where the MAF sensor attaches. This is for cars running over 320whp that need more efficient air flow. The Big MAF intake requires custom tuning and CANNOT be bolted on without it.
The Big MAF intake requires custom tuning and CANNOT be bolted on without it.
Subaru STI 2004-2007
Subaru WRX 2002-2007
This intake is not CARB approved for CA.