OEM belt is best. I have a 94 Corvette. Changed the original belt out at 30k just because I was replacing the Opti-Spark (all 92-94 corvette owners know about this devel! The 95-96 were improved) and since everything was off, replaced the belt too. I just like keeping my Corvette pristine and original. However - those Goodyear belts are extremely good too - used one on my Cherokee and boy what a quiet belt!