I have an 03 RSX Type S and I plan on swapping a K20A into it to but i'm concerned with whether I absolutely need to get the motor from the DC5-R or if I could put the CL7-R motor in. Only reason i'd rather get the CL7 K20A motor is because it is siginificantly cheaper than the DC5's K20A. What are the differences between the two (if any) and would I be able to continue using my PRB ECU with K-Pro v4 with either of these engines? I plan on keeping my RSX-S transmission as well as everything except for the K20A2 itself. Any help is welcome/appreciated.