everyone pretty much loves the NGK Iridium . I have the Pulstar Iridium and have good luck with them. One other forum member had the pulstars and one or two of them crapped out on him. Not sure why. I had done some dyno testing with brand new NGK Iridium and Brand new Pulstar Iridium and the Pulstars cam out on top with 16hp and 10tq over the NGK's. http://www.titantalk.com/forums/tit...13371-pulstar-dyno-testing-2.html#post2129087
I am looking to replace my plugs as well, I think my Uprev tune has been a little rough on them. I have pretty much narrowed it down to the NGK iridium ix or the NGK laser iridium. I was looking into Pulstar plugs but I am kind of scared to run them with the mixed reviews I have read.