Post your sidegapped plug results !!
For those that have sidegapped, it would be great to see which plugs you used and the overrall results, such as mileage, power, etc.
I think I will first experiement on the wife's Subaru Legacy, since all four plugs are very easy to get to and would take very little time.
I think I will first experiement on the wife's Subaru Legacy, since all four plugs are very easy to get to and would take very little time.


