New member, new owner. Bought an '06 wrx last week with 72,000 mi. and will likely be replacing the timing belt, water pump etc. My question is, would I benefit by having an upgraded belt? I've seen the likes of Greddy, Gates, HKS among others, but they're very expensive. They claim to make a more durable belt, but I have doubts it's any better than stock, and if there's no real gains, I may as well buy genuine ??