Spark plugs?
Is anybody sprayin iridium stock heat plugs. My tr6s are ok but Im worried im loosing n/a power during day to day driving.Thanks for any feedback in advance.
there was just a topic about this not to long ago.
you wont notice a difference with the TR6's as far as lower performance
i just bought a set, still have to install them though
you wont notice a difference with the TR6's as far as lower performance
i just bought a set, still have to install them though


