Spent a hour with the SHO today. Took off all 6 coils to check for oil. Didn't find a drop. Car is at 18k miles. Think it's good to go or could I still have a faulty valve cover seal in the future?
Going to pull the trigger now and get a tune. Already have the 3BAR, just need new plugs.
Where is everyone buying the SP534 plugs?