The Italy forward believes the San Paolo outfit is a stronger side following the summer striker swap.
The Partenopei have posted an 100 percent Serie A record after the first four games of the campaign, and Insigne believes the arrival of Higuain has given Rafa Benitez's side another dimension.
"Cavani always wants to score goals but Higuain is different," Insigne told Gazzetta dello Sport. "Higuain plays more for the team, he's a great champion and comes from a great club. His goals will make us even better, and he has a great understanding with everyone, just like Marek Hamsik and Jose Callejon."
Insigne seemed to be radiating the sort of positivity which has infected the San Paolo stadium since the beginning of the season. A well deserved 2-1 win against Milan at the San Siro on Sunday extended Napoli's successful start and that result came on the back of an impressive 2-1 defeat of Borussia Dortmund in the Champions League the previous Wednesday.
"So far everything is beautiful," the 22-year-old Italy international continued. "But we must remain humble and follow the Benitez way. I like the style. We play with the ball on the floor and this gives me confidence.
"Benitez has given us a winning mentality and with pleasure I sacrifice myself to contribute defensively."