Yes, I cross-posted on the "Performance" board as well.

The intake cross-pipe is from a M104 used on the S320. Per the Mercedes group that built the C36 Medical car (my donor car) it helps make more low-end torque, but at the expense of wide-open throttle breathing.

I've never tried a regular C36 intake cross-pipe, so I can't vouch for the difference.

:-) neil
1988 360TE AMG
1993 500E

Here's a picture of the S320 engine bay, and a picture of the C36 donor vehicle.