Originally Posted by AccordSleeper
i thought all bosch platinums were +4s design. you still probably paid close to $10 each for them the ngk platinums are like $12 i think. i still i would not use platinums anyways, they are not a performance plug. they are a plug for lazy people who want to change plugs every 100k. if you want extended plug life i would get iridiums which ngk makes sells for like $7 each and will last about 50k or so.
No, Bosch platinums are a regular plug design. I'm not trying to put performance parts in my car, I'm trying to put quality parts in it. I never claimed to want extended plug life either. I'm not about to leave a spark plug in the engine for 100k miles. BTW they are about $3 each. The NGK plugs are $12 because I'm wiiling to bet they are double platinum, which is of no real advanatge. You're just paying extra for some gimmick technology.