Reviewed By Abdulla A (Portland, OR) Reviewed for a 2006 BMW 5-Series —8/30/2014 5:06 PM
After installing the aFe air filters, I've definitely noticed improved gas mileage and horsepower. I'm very happy with this purchase.
Reviewed By dennis t (DALLAS, TX) Reviewed for a 2011 BMW 5-Series —3/28/2014 8:53 AM
After getting on for a 3 series I also own I was surprised by just how easy the one for my 5 was to install. I wasn't under the hood 5 minutes to complete the job. While I haven't had this filter in but for a few days, I'm expecting similar results to all of the others I've installed in my cars. Typically 5-10% better fuel economy so it doesn't take all that long to recover the initial cost.