Really intrigued with the recent interest in swapping in the K20C4 and K20C1 engine into the 11th gen civic. I was doing a bit of research, and if you put in the accord engine, the 11th gen SI Harness and ECU are compatible. The type R engine not so much, so i looked into the crate engine they sell of the K20C1 that comes with the HPD Controls Package. which is like an extra $3,500 just for ECU and Harness. But it says that this ECU is not tunable. Is this HPD Controls package the OEM ECU on the FL5? Or is this an aftermarket one? How have people been tuning their Type R's? Noob here just trying to understand.