phunk

I cannot comment about the accessibility of the oil filter with your setup... but I can say that the CJM oil pan has the drain plug on the opposite corner of the pan (rear driver-side). I believe that the drain plug location would be problematic for that access panel on your undertray.

However, since the drain plug is completely vertical on the CJM pan, a strategically placed 1.25" diameter hole-saw cut directly underneath the drain plug would allow you to quickly access the plug without having to remove the undertray again. Placement would be critical though to make sure the oil drains through the hole rather than streaming down the top of the undertray. A 19mm socket is 1" outside diameter, so perhaps a 1.5" hole would be more appropriate. Probably depends on how close the pan comes to the undertray... the further apart they are, the more margin needs to be provided for the trajectory of the draining oil.

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