m52

Drove it down to the beach and back today (almost 9 hours of constant driving on the interstate at 3.5k rpms) and noticed on my return trip it started to overheat. It would go up, then down, then up. It would raise as the rpms went up, and cool down when idle or less than 2k rpms. It only just...

Is the swap from a 2.5l M52 to the S52 worth it? I hear it's plug and play and that you'll need a new power steering hoses and such, but the mounts, harness, sensors etc. Are all the same. Will need a new ECU and have it flashed and EWS delete I think. My goal is to gain more power, more OOMF...