BOSCH 6703 OE Fine Wire Platinum Spark Plug - Single

These replaced a seven year old set of their +2 platinum plugs in my LT1 Corvette. I liked the concept of +2, but I remember wondering if it ran different... This time around, I just went regular platinum replacements. Theoretically they last longer than the regular plain vanilla AC-Delcos. I saw some "don't bother with Iridiums in the LT1" with some people saying it could be problematic for the OptiSpark. Back in the late 90s, everyone swore by platinums, so this is what I chose. Runs smooth as silk.

Very good plugs at a good cost.

These fit perfectly in my 1998 Chevy Suburban, the price is right, and I will buy again.

IT'S GREAT

These plugs claim to be pre-gapped at .060 inches. All six if the ones I received have a gap of .053. What makes this even worse, it's that you aren't supposed to adjust the gap on these plugs.

working good so far after my complete tune-up I've been getting 5 extra miles per gallon thank you

Great product , car runs very well now ...just wish they were pre-gapped because I wasn't comfortable " tapping" them to close the gap

Screwed in the hole, engine runs fine.

worked fine

They r good ,I just didn’t like the fact they send one at the time when I order six plus and I just receive only five. That’s the only problem I need one more !