Good morning - I believe that Chris is the go-to for a known good MPS but the D-Just stuff is all new to me so not sure.

Does he have a site, or just find a PM for him?

Thanks!

You may be looking for Chris FOLEY, who sells new diaphragms and can rebuild yours. My car runs great now.

Lots of others good stuff.

http://www.tangerineracing.com/mpsdiaphragm.htm

Ah - thanks for the correction. See, I am a total FI noob!

Hope your weekend is off to a good start.

Contact Jeff Bowlsby if you want the easy solution. He buys diaphragms from me and offers a MPS rebuilding/calibration service. He's on your side of the continent too.
If you want to do it yourself, order the repair and tuning kit from my website, linked above.

Thanks Chris-I've got some other stuff to order from you coming up here .