Quote:
Originally Posted by ggunn9
I have a BM3 stage 1 tune and have had it for about two years on stock plugs. I just changed my stock plug to 1 step colder. I don't notice a difference in performance. The stock plugs had about 30k miles on them when I changed they and they looked ready for the change. My X5 is a 2018 F15 sdrive35i I love the power with the stage one tune. I am looking to add an EV to the fleet next.
|
I retract my previous comment and highly recommend NGK 97506 swap. I'm running 0.020 gap.