I haven't had one go bad, fortunately, but I'm not sure which way I'd go on that. On one hand, half the price is really nice, especially if it turns out it's from the same supplier. On the other hand, if it's a low-quality knock-off, it's a fairly critical part and could cause a lot of issues (possibly hard to diagnose). I'd love to hear a report back on how it works, and if you run into any problems with it.
TPS made by SPI fixed the issue, quality seemed to be as good the the Polaris one that is Probably made in china to. Engine light went out sled idles nice now never has since we got it last years. Also responsive off idle now which it wasn’t before either. Sled has a Redline Ho turbo on it.