Reviewed By gerald f (waukesha, WI) Reviewed for a
Lexus GS 350
—7/5/2014 8:39 PM
Fast shipping, great product
Reviewed By Richard M (Highland, IL) Reviewed for a
—1/26/2015 4:28 PM
I immediately noticed an increase of about 2 mpg and I don't know how much horsepower but I could definitely feel it. So far, an unexpectedly impressive improvement in performance all around.