[projectRDM]

Possibly. Anyone can build a driveshaft and balance it on a lathe, but who knows if during shipping it got a ding or knick in it, or if your car just has a shitass drivetrain alignment and nothing balances right. My Enjuku shaft was balanced, but it was still off a bit when I had it rechecked. A quality shop locally welded a weight to it, ground it the welds flat, then rechecked it, it was then dead on. A few grams is all it takes for noise.