I just did another timing belt replacement today, this time on the VR-4. I have been working on single and dual OH cam engines for 30 years. I have always used OEM belts and NEVER had one break. Replacing these belts is a several hour job and I don't want to re-experience the fun just because I went cheep and I really don't enjoy re-doing an engine that was perfectly good one micro-second before the timing belt broke. Pay the extra money, at least for the two belts and sleep well.