 In today's Cobb highlight, we revisit the 2015 through 21WX for yet another excellent intake option with the Cobb SF intake. The first Cobb intake for the VAWX generation was the big SF intake. Then we released our awesome carbon fiber red line intake. Now the updated and re-engineered SF intake joins the family. The kit begins with an all aluminum air box that controls airflow and protects the intake from excessive engine heat. It's covered in a sharp looking and durable wrinkle black powder coating with a classic Cobb nameplate on the lid. Found inside of the air box is a massive conical oiled air filter that is washable and features the Cobb logo molded on the end for some bonus style points. That filter attaches to the most significant update on the intake, our custom designed mass airflow housing with the velocity stack and integrated airflow strainers. We listened to our customers and pro tuners for feedback on the original big SF intake and performed a lot of street, dyno and flow bench testing with various filter options and math housings when engineering this intake to ensure that not only does it flow much better and produce more power versus the stock intake, but also maintains the accuracy and consistency that you would expect from an OEM part, which makes tuning the car much easier and more efficient. The rest of the kit includes a couple high quality reinforced silicone couplers and a 3 inch mandrel bent elbow with the same wrinkle black powder coating to match the air box and make the entire system look like it was always meant to be at home under your car's hood. And last but not least, we always provide top tier quality hardware, clamps, harness extensions and seals to make the installation process satisfying and the intake ready to last the entire life of your car. Subaru may have moved on to a new generation of the WRX, but Cobb is still taking care of the last one. There's still plenty of 2015 to 21 WRX's that are in need of a new intake and the Cobb SF intake offers the best balance of price, performance and quality. Grab yours at Cobbtuning.com