Reviewed By Anthony L (North Huntingdon, PA) Reviewed for a 1998 Audi A4 Quatro —8/3/2006 6:06 PM
I put the new filter on a custom intake for my audi (there aren't any out there) and noticed a big improvement. So far i've noticed a gain in MPG, little bit of HP, but the biggest improvement was the higher amounts of low end torque. It also made the engine sound meaner.