How about a ... "woo-woo-woo-woo sound while crusing 30 - up MPH" Kind of higher pitched. Doesn't happen when i'm off the gas or half throttle. Just got new tires and an alignment also.

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-Kyle
1979 Suzuki FZ 50cc Scooter
1988 Pontiac Fiero 5spd 4.9L V8 Cadillac (220,000 mi)
Delta Cam, True Dual Exhaust, Spec Stage 4
1993 BMW 325is 2.5L I6 DOHC (135,000 mi)
Mods: Fan Delete, New tires