Great product, especially for boosted cars via turbo or charger.

Great product, especially for boosted cars via turbo or charger.  Read Less

These work great on my e85 cobra running 17lbs of boost.

These work great on my e85 cobra running 17lbs of boost.  Read Less

If you own an ls and you’re not running these or brisk boost plugs you’re doing something wrong.

If you own an ls and you’re not running these or brisk boost plugs you’re doing something wrong.  Read Less

Great spark plug, but i went ahead and went with a tr6 since these were too cold for 10 lbs of boost.

Great spark plug, but i went ahead and went with a tr6 since these were too cold for 10 lbs of boost.  Read Less

Noting that i replace my plugs about once a year anyways, so i always go with the inexpensive standard plugs and not the pricey iridium).

Noting that i replace my plugs about once a year anyways, so i always go with the inexpensive standard plugs and not the pricey iridium).  Read Less

So far these seem to idle/run even smoother (but don't new plugs always run smoother, will have to update review after $10-12k miles or so.

So far these seem to idle/run even smoother (but don't new plugs always run smoother, will have to update review after $10-12k miles or so.  Read Less

Never ran them but they fit perfectly, they do sell cheaper elsewhere but it’s faster shipping here.

Never ran them but they fit perfectly, they do sell cheaper elsewhere but it’s faster shipping here.  Read Less