this is my first tune up on my current lude. oem is ngk platinum lasers and they are expensive as hell. has anyone put in any other ngks? the list of compatible plugs is fairly long, but the price difference is huge. my cost on the lasers is 11 bucks and the other ngks are like 2-4 bucks apiece. if i buy the cheaper ones am i going to run like shit or will i just have to replace them alot sooner?