If this is the CRRCPro engine then forget it. Save your money (another $91) and buy a DL50.

The CRRCPro engine is like a tractor engine compared to the DL50.

With the DL you get a *lot* more power, far better engineering, infinitely better quality control, first-rate customer support (if you buy from DLUSA) and great value.

Yes, I have a DL50 (which I fly in my 90" Extra 330L and a CRRCPro 45 which sits in my "trash" cupboard that's filled with other stuff I bought because it was "cheap" but which I later regretted.