well the ngks are iridiums thats why their alot more expensive, they've been used on the forum and their recommended by honda as an alternative so they cant be bad. just not iridium though but i reckon they should last a while if ur bikes setup nice with the tune.
especially when your running it in and just tuning the carbs, dont want to be be plug chopping on $10+ plugs and throwing them away
so if ur down i'll put a post on nsr250 hopefully we can get a few ppl into it, i'd be down for about 20 just for myself, just gotta work out shipping and what not depending on how many we get. should be viable, i got some crapped up BR9ECMs so i'll try and get a weight on those and check usps.com for shipping prices from the US.
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