Review on 🔌 Denso 671-4239 Spark Plug Wire Set: Superior Performance and Durability by Mick Ohlrogge

I actually bought them 2 times in a row without understanding what the problem was until I replaced them. The cables weren't as durable as the OEM cables. The hard end of the spark plug on one of the wires broke while driving and I started misfiring because there was no connection. Very strange. I'm assuming that maybe it was because I didn't have the plastic engine cover, so maybe it worked and somehow broke (though unlikely). I replaced it again with these so hopefully they last longer this time. If not, I'll try a different set next time.