But McGahan, who has guided his side to third in the RaboDirect PRO12 after eight matches, is adamant Munster can't live off past glories in Toulouse.
"The players stuck to it right to the end and we knew we would have to make sure we were right in it at the end to get that result. So, it was terrific for the squad and for the fans," he said.
"The entertainment that was put on by both sides, the intensity and the pace of the game was terrific, it was a high-quality game. As a spectacle, it was a true indicator of where this competition is and how difficult it is to get a result.
"They are a very good and very consistent side. I have been watching the Top 14 in the last two and a bit years and their progress to turn into a side that's up in the top four and they have built a strong forward pack.
"They have a strong start to this season in particular and they are going to be a typical trench-warfare side - it's going to be a real battle and we need our forwards to come to the fore again."
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