I still don't know why Revain says this is not compatible with all LS1 engine model year vehicles, when Continental themselves list this specific part number for these vehicles on their website. However, Revane is wrong. Thick, stiff and durable at best, this strap outperforms any standard Dayco strap or equivalent all-rubber compound strap. Has much better friction to hold on to pulleys and guides, won't stretch and will stand up to almost anything else. Buy two of these, one for installation…