Gates actually makes belts for other companies, I think they do the HKS and the Greddy belts actually. Per Gates website, its 300% stronger and dissipates heat 3x faster. Its really not that expensive either. The OEM belt is around $75 and this belt is about $100. If you held it you can feel a difference. Its not "elasticy" like the stocker, its firmer and IMO I think its way less likely to stretch.