CISFlowtech.com main guy is Larry. Very friendly willing to diagnose before you send the unit too. Will talk to you forever...literally!

I got mine rebuilt from him about 2 years ago and still running great.

__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k