By Gabriel Tan in Bangkok
The Lions head into the game at the Suphachalasai Stadium with a 3-1 lead from Wednesday's first leg, but the tie is slightly complicated given Thailand have a valuable away goal courtesy of Adul Lahsoh's 59th-minute strike at the Jalan Besar Stadium.
As things stand, a 2-0 win to the War Elephants would be enough to hand them the title, but Avramovic is determined to keep things simple by sending his side out for the win.
"For me, it's very simple," he said at Tuesday's pre-match press conference. "From the start of the competition till now, we've shown in every game we try to score.
"I don't think any result allows to sit back [in the second leg] and think it's finished. If you don't try to score, you will be punished by the opposition.
"If we have any opportunity to score of course we will, but we must also look to prevent giving chances to our opponents. It's very simple."
The Serb also admitted his side were in an advantageous position with their two-goal lead from the first leg, and believes they are capable of seeing off Thailand on Saturday.
"Me and the team are very happy to be in the final of the Suzuki Cup," Avramovic added. "It was our wish to be here and Saturday's game is one where he hope to achieve our target and our wishes.
"We have a small advantage at the moment but this is a new game and it's normal that Thailand will try to do everything to win the game.
"We will try to keep the result as it is and hopefully in the end, we'll be celebrating. I think this team are developed and mature.
"All teams in this situation will try to do their best and I see no reason why it won't happen again."
Should Singapore emerge triumphant on Saturday, it will not only see them win Southeast Asia's biggest prize for a record fourth time, but make Avramovic the most-successful coach in the tournament's history after his wins in 2004 and 2007.
Nonetheless, he was unwilling to entertain suggestions that this would potentially be the best of the lot, given he is widely expected to end his nine-year reign after the competition.
"It's not about me," he declared. "It's about the team and the competition.
"Once we finish this, we can discuss [the future].
"The previous victories came in different times. I had different players and we played different opponents.
"This is a new challenge and a new competition and for these boys, now is their time. I'm very happy with how they're developing. It's different to all the other teams we have played in previous editions."
Four players in the current Lions squad were present in both triumphs in 2004 and 2007 - captain Shahril Ishal, forward Khairul Amri and defenders Baihakki Khaizan and Daniel Bennett.