Perrin Cold Air Intake System WRX/STI 02-07

Completely New Cold Air Design!!!

Increase horsepower and style under your hood. Perrin's research team noted that proper MAF alignment and plumbing size are crucial to maintain proper air fuel ratios and prevent nasty check engine lights that plague the less than admirable competitors. You will see consistent gains in horsepower, throttle response and fuel economy. And now available in a cold air version for those wishing to extract every last bit of power from an intake system. Each Intake System includes high quality clamps, and super tuff wrinkle red or black powder coating, silicone coupler, a PERRIN Performance foam air filter, MAF sensor housing and mounting hardware.

Perrin has found putting the filter into the fender to be the best way to get consistent cold air into the engine. They have found that its not the engine (at the intake manifold level) getting colder air that makes power, but that the MAF sensor reading colder air. There are maps in the ECU that effect timing, boost and fueling if the MAF sensor see air temps exceed a certain amount. The short ram intake doesn't have this problem except for in situations like stop and go traffic. The cold air intake system eliminates the issue altogether.

This means for more consistent temps at the sensor, and in turn more consistent power, more consistent runs when dyno tuning, and overall smoother power. The cold air intake uses the same tried and true MAF housing as we have used in the years past, which means no CEL! The PERRIN MAF housing and intake systems replicate the MAF curve nearly perfectly so off the shelf tuned Maps can be supplied with no issues.

Available in Black or Red. Please select below.

About Manufacturer: Perrin
The ALTA Performance Group™ has been a pioneer and market leader in the performance aftermarket since our inception more than 10 years ago. Using the finest materials and labor, found here in the United States, you are assured that PERRIN™ stands for quality and value. Our customer service, sales and technical staff is always available to help you with questions or concerns. From live instant chat messaging on the website, to e-mail or phone, we pride ourselves on the unique levels of customer service we provide that are simply not found elsewhere in the aftermarket today.