# ngk iridium vs platinum **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [January 17, 2007, 9:09pm UTC](https://forums.speedlife.net/t/ngk-iridium-vs-platinum/23211 "2007-01-17T21:09:05Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![JayS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jays/32/15375_2.png) [@JayS](https://forums.speedlife.net/u/JayS)\ **Post date:** [January 18, 2007, 5:24am UTC](https://forums.speedlife.net/t/ngk-iridium-vs-platinum/23211/5 "2007-01-18T05:24:12Z")
> [@99\_civic\_si](#): > > ngk copper plugs. should cost 10 bucks for all 4. Don’t waste money on fucking stupid plugs that suck. +1 The precious metal plugs are about one thing… longevity. All the car manufactures got in on the “100k miles without a tuneup” crap. Part of being able to do that was having a plug that would last 100k, and that’s why we all have these fancy plugs now. What they don’t tell you is a simple copper plug will actually work better if you change them every 20k or so. There was a huge thread about this over at [ls1gto.com](http://ls1gto.com), with lots of people talking about how much better their cars idled after switching to NGK TR55’s. I had my doubts, but going from my 86 Fiero that I worked on constantly to the GTO I was having “wrench turning withdrawl” one weekend and decided to swap them out. Sure enough, they really do work better, and my car only had 5k on it. --- _[View the full topic](https://forums.speedlife.net/t/ngk-iridium-vs-platinum/23211)._