The German brings his unbeaten league leaders Liverpool to Molineux on Friday night.
It's a hotly-anticipated clash and Klopp, speaking at today's pre-match press conference, is expecting a tough test.
"Outstanding project, what they did last year in the Championship, I am not sure that happened too often,” Klopp said.
"The way they played, very often you go up with this kind of old-school British football, it’s a tough league and it makes sense to do it, the only two teams the last few years that did it differently were Huddersfield and now Wolves, so that’s unbelievable.
"Then they brought in players again and needed a bit of time so that everything fits. Now they are really strong again, they won the last three, we have to go there and be at our best again.
“I saw the games long ago, the (Manchester) City game, it was balanced, the goal Wolves scored was handball and the way they defended as a team was really impressive. That’s the job to do, first Wolves then Newcastle, then Arsenal is a challenge then City, Wolves again.
"That’s how it is. Exciting times, it’s a good moment, but it only worked so far because they boys were always focused on a specific job. That’s what we will try to do again."
Klopp revealed that James Milner should be fit to face Wolves but the game may come too soon for Trent Alexander-Arnold.
He added on Wolves: "It hasn’t surprised me at all. I seen them in the Championship last season. It’s really impressive what they did.
"They’ve kept really good players. It’s not normal after the season they played so it was really cool for them and they bought in really good players.
"Their results have been unlucky there, lucky there. They did really well and I respect that a lot the way. The way they try to stay in the league is really special. They do it in a football way.
"But so far they haven’t played us. That has to be a new experience for them. We have to be really strong. It will be a really interesting game. We have to be ready for everything.”