Hello all. Recently installed the Steeda bushing kit. Simple enough install. Results are as promised. I've noticed a very clear "whoop whoop whoop" noise coming from the real. Low speed only. 5-10 mph. Goes away ( or at least I can't hear it) when I go faster. Figuring just picking up tire noise now with the aluminum inserts at the bushings. No noticeable vibration associated with the noise. Any thoughts?