Torquay boss Paul Buckle has stressed that their 5-0 home win over Shrewsbury in March can be repeated in the play-offs semi-finals.
The Gulls face the favourites at Plainmoor in the first leg on Saturday.
Buckle told BBC Devon: "We ripped Shrewsbury apart at Plainmoor and our fans played a massive part in that.
"We've got to try and recreate that so I'd ask Torquay fans to come out in numbers and get right behind the team because last time it worked."
He added: "Our supporters were electric that day, and they (Shrewsbury) couldn't handle the noise and the tempo we played at."
Torquay booked their place in the League Two play-offs by finishing seventh, despite losing 3-1 away at Rotherham in their final game of the regular season.
"We deserve to be in the play-offs," said Buckle. "And we're going to give it everything we've got now to try and take it another step further.
"The players are confident - they've trained ever so well this week and they're raring to go."
Shrewsbury ended the campaign in fourth, 11 points ahead of the Gulls and only one adrift of the automatic promotion places.
"I think there's more pressure on Shrewsbury," Buckle said. "They're geared up to get in League One.
"We'll go for the game, we'll go to try and win at home and away and I'm sure Shrewsbury will do the same because they'll be expected to go through against us.
"But we've got to keep the door shut and on the back of it we've got to be not afraid to go and attack as that's been us at our best this season."