6 New NGK IRIDIUM IX Spark Plug LZTR5AIX-13 # 2314

I installed these at the same time. I installed a set of stainless steel rip supercharger headers with high flow cats. I did not install a supercharger but the exhaust system and these plugs made a significant performance difference and I got a couple extra miles per gallon if I can keep my foot out of it.

Good product

Did what they are meant to do.

Great plugs

Despite my spark plugs passing general specification, ohms through their plug wires (slightly deficient) replacement of the standard factory installed spark plugs with the iridium yielded an immediate difference: (1) cleared diagnostic code has never reappeared; (2) engine idles, accelerates, drops into "kick-down" gear much more responsively; (3) gas mileage has improved noticeably: as much as by 4 miles per gallon on the average. I'm very pleased with the performance of the NGK Iridium IX plugs.

Se resolvió el problema de combustión que tenía con el jeep.

This works great and for a fraction of the cost!

The NGK IRIDIUM we're put on a 2006 Chrysler. Town & Country Basic. Wow what a difference these spark plugs have a lot of pick up and go.The NGK IRIDIUM Makes a big difference. They drive smooth. I would recommend to anybody who wants to feel the difference and you will feel the difference.