Purchased these today, had them installed in about 15 minutes. 50 bucks for the NGK plug wires and 10 bucks for the NGK BPR7ES spark plugs. Gapped the spark plugs at .28 and have to say that my car runs a lot smoother now. I was getting a nasty misfire when i would accelerate hard into boost....yeah the plug wires, went ahead and replaced both. I recommend this combo to anyone. Mike from road race is a great guy to deal with.