🔌 NGK (8660) RC-XX89 High-Performance Spark Plug Wire Set Review

I use them in a tropical place with high temperature and humidity and they work fine. I recommend them as they are well cut and fit perfectly.

My OEM spark plug wires were wearing out and obviously had arcing issues. The NGK kit solved these problems. I've had it for a while and the wires look great. Great quality, worth the extra money.

Liked wires for cylinders 2-4. Cylinder #1 wire was 5 inches shorter. VERY disappointed as I wanted to tune the whole machine. On the plus side, the part that connects to the spark plug protrudes a bit and is stiff, which helps keep the wires clear of heat shields etc. If only one wire was long enough. Installed on a 1998 Hyundai Accent 1.5L hatchback.

I fitted this kit to my Hyundai Coupe 2005 1.6 CC after 156,000 km with the standard kit. Equipped with the NGK Iridium IX kit, fits great as an OEM and even looks a lot better! The vibrations are gone, the engine sounds like a sleeping cat, very, very, very smooth acceleration and a noticeable improvement in fuel consumption, surprisingly stable acceleration at high speeds. The improvements are really noticeable. Definitely a great upgrade and investment, especially over the long term

Easy to install on a 2005 Hyundai Accent. Wanted to clean it up as warranty just expired, paired them with ngk iridium spark plugs and they work perfectly together. Put all the spark plugs in and everything worked fine just make sure they are all the way in. I've noticed that anyone who has changed my spark plugs before (at any garage) used too much force to insert the OEM wire and deformed 2 of them. Gaskets, nothing seems to be damaged, but there is a noticeable discoloration on the edge of…