I know Steve Hellums had a Renntech tune on his... and he loved it.

AFAIK it was a can-tune and not dyno-specific.

While Renntech may not list support for the 3.2 on their site anymore, it was certainly supported at one time. Pulley, tune were the only things that I was aware of.

There was also a Renntech carbon airbox but it was for the N/A 320