I've previously installed a front stainless PLOG. Will I need to loosen or remove the front PLOG to install the crossover? Anyone have experience with one? The reason I ask is because the ceramic coating looks cheap. I'm only interested in lowering the underhood temps. Would I be better off just wrapping the existing crossover & keeping the ZZP as a backup in the event of corrosion? For what it's worth, the ZZP SS PLOG lowered my IAT from 40 degrees over ambient to 17 degrees over ambient. Measurements were taken at temp while cruising at 45 mph.
