# which spark plugs should i use for sr20det? **URL:** \ **Category:** SON240sx Automotive\ **Created:** [September 29, 2007, 10:07pm UTC](https://forums.speedlife.net/t/which-spark-plugs-should-i-use-for-sr20det/109878 "2007-09-29T22:07:07Z")\ **Posts on this page:** 1\ **Showing post:** 23
**Author:** ![RED\_LINE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/red_line/32/5656_2.png) [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)\ **Post date:** [March 6, 2009, 6:56pm UTC](https://forums.speedlife.net/t/which-spark-plugs-should-i-use-for-sr20det/109878/23 "2009-03-06T18:56:24Z")
> [@Cobra w/pully(s)\>ME](https://forums.speedlife.net/t/cobra-w-pully-s-me/14380/19): > > i just couldn’t figure what the difference from iridium to the regular ones performance wise. I researched and basically came up with the conclusion they are pointless for me in my build. They provide a stronger spark allowing a slightly larger gap but ur better off upgraded your electrical then spending $50 on plugs. The regular BKR7E’s are copper I believe, they’re good but can’t beat an iridium plug in terms of performance and longevity… since Iridium runs hotter than copper, it’s good to go 1 - 2 steps colder than the copper plug so BKR7E’s = BKR8E’s (in Iridium V-Power) --- _[View the full topic](https://forums.speedlife.net/t/which-spark-plugs-should-i-use-for-sr20det/109878)._