i cant explain it...lol, its just an odd sound...not mean sounding, really weak sounding, makes me press the accelerator harder to get rid of it! lol. the x has a nice rumble at idle and starts to scream as you get on it, but just pulling away from a stop once you get to cruising speed its real fluttery, thats all i can say....ANYONE ELSE KNOW THE SOUND IM TALKING ABOUT?

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01 GT Vert...Black and Tan
CURRENT MODS: JLT Ram Air Intake, UPR o/r X pipe with JBA mufflers and 2.5 in. pipe w/ stock tips, UPR black anodized shift knob w/ OD button relocation kit, B&M
tranny cooler, 35% tints all around, Mach 1 chin Spoiler, Red Calipers, Stainless bumper letters, custom badges, Pioneer AVIC-F700BT Touch screen Navigation Unit...more to come