[ClutchFC]

As long as you’re putting the right plugs in and it’s not something for a different car, I’d argue you’re not really going to find a plug that’s significantly better than the other. They’re just spark plugs. When I was working on a top fuel funny car team, the plugs they used in an 11,000HP engine were Champions. You’re in an X3 bruh. You’ll feel the same performance whether you go Bosch or NGK.

Now if you were to grab a PR coil kit or B58 coil conversion kit you’ll see some performance improvement, but the plugs are going to spark only as much as the system is going to give it.

The gap difference is where you may experience rough performance. So before you screw those bad boys in double check the gaps and put them into spec.