"I topped my group and I was really happy with that," he said. "I came through pretty cleanly and got up there in all my races and the racing was pretty clean."
The crucial race on the second night proved to be the first when Towler started dead last on the grid.
"When I found out all my grids I was pretty nervous because I knew I had to drive the best
I could in those races. I wasn't too worried about the one I had at the front, but from the back I was worried because I knew I had to push the car to see what it can do to get up there."
In the first race he made up 21 places and finished fifth.
"The start was pretty good. I stayed at the back going round that first corner to avoid all the carnage and everything, and then picked them off one by one. I managed to pass a few cars and a few cars dropped out from a crash."
He said he was "pretty happy" to finish fifth in what was likely to be his trickiest race.
A third in his second race, from grid 13 set him up with a great chance to defend the title he won in 2016, with a grid one start in the final race.
Not surprisingly, he was nervous as he waited for the green flag to drop.
"I knew it was all or nothing and I had to lay it all on the line for that last race otherwise I was going home empty-handed. I knew I had to just drive the way I know I can and hopefully be lucky enough to come away with the win."
In the end he took that win, but didn't have the race all his own way.
"I had a good battle for the first couple of laps with one of my mates, Calyn Clark, and then I managed to get a bit of a lead."
There were no nervous moments, no tangles with back markers, and no hint of mechanical issues.
"The car went okay. All I had to do was top it up with fuel and give it a bit of a clean to make sure it looked good when I went out.
"I'm over the moon to be the first person to go back to back. All my mates were cheering for me and said I drove well and deserved it."
With the 2016-17 season now well over half way through, Towler hopes to make the most of his final few months as a youth ministock driver and has lined up meetings at Huntly, Palmerston North and Stratford, as well as those at his home track.
Turning 17 right at the start of next season, Towler will be taking a year out of the sport to decide where and whether he wants to carry on in speedway.
Last season Towler became the first Rotorua contracted driver to win the title since Ken Hunter in 2006, and only the second Rotorua driver to win the title.
