The Turkish side visit Old Trafford on Wednesday in what will be the first meeting between the two since 1994 when United romped to a 4-0 victory.
Terim said: "I don't need to tell you how Manchester United are a big club. We respect to them but we don't fear them. We are going to England for take a good result."
He added on the club's website: "Years ago we made history against them. I believe that Galatasaray can repeat that success."