As for the oil cooler situation, Travis I would only run oil to water...multiple reason's.
1.Water is more efficent than air in transferring heat.
2.The whole system will weight less than any oil to air system, that gives you equal cooling
3.You have more options in location, leaving the front open for intercooler/radiator.
4. With mulitple large oil to air, I have a feeling that you are taxing the factory oil pump. I would rather have the pressure/volume to the engine.Being the most oil to water are about a 1/3 in overall size to the comparable oil to air, less stress on oil pump.
The situation with the 135i is not comparable for obvious reasons, installer/chassis/equipment plus BMW cooling system is horrendous.
Also dont worry about radiator keeping up with the extra heat, as yours is quite large.You will not notice any higher temps on your gauge. You can put on a separate controller for the fans , activating them sooner.
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Best 1/4 mile 12.24 Best mph 114.5_______
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