Spark plug Autolite or BRISK

I've put about 100 miles on them and the car seems just as happy as ever. Went for a spirited drive today out in the hills and the car felt responsive and strong through the power range.

I got mine from ECS: drop-in replacement and no issues even with my Burger unit on map 2.

I currently run the Brisk er12s and have been happy with them...I'm mpi running full e85 and the car responds well. It's also what my tuner recommended.

I got a set of APR coils and Brisk Silver Racing ER12s plugs for around 200

Autolite a103 gapped to .055" will give you about a 5hp increase and last around 30,000 miles

Autolite 4162's, I changed them out every 1000 miles.

Yesterday, I installed new spark plugs in my 2004 TJ. Going off [this thread](https://wranglertjforum.com/threads/what-are-the-best-spark-plugs-for-my-jeep-wrangler-tj-4-0.4196/) I purchased the Autolite XP985. Originally, I gapped the plugs to .04 based on [this thread](https://wranglertjforum.com/threads/spark-plug-gap-for-4-0.17415/). The jeep ran terribly and actually threw a check engine light.

I went back today and changed all the gaps to .035 based on the note under the hood, but I still think the idle is a bit rougher then what it was before the change.

I’d never put autolites in a Jeep, send em back and get champions or NGK depending on year and model.

I quit using autolite plugs somewhere between 1995 and 2000, got tired of all the comebacks.

I work on euro cars. If I'm diagnosing an issue that even has me think misfire and it has autolites, I'm done until they're in the trash can and OE is installed.