Reviewed By Ryan L (Port Townsend, WA) Reviewed for a 2003 Saab 9-3 —6/19/2013 5:05 PM
I've always had good luck with K&N filters, whether as a direct replacement or for an all out performance application. This one was no different. An immediate change in turbo response was noticed, despite the car previously having a very clean paper filter. K&Ns are always good investments, if just for the ability to clean them, but this one also offered a noticeable performance gain.