I just replaced a high flow valve cartridge (kGP1144925) in my shower because of temperature problems. Now the shwer heads constantly drip. Any suggestions?

If a little more tightening doesn't stop the drip, then go back and re examine your work carefully, and make sure your seats/o rings are not damaged.

Recheck your installation. Remove cartridge, grease it well, especially all O-rings, and carefully re-insert.

Hope that helps

Milo