Parramatta five-eighth Dylan Brown was critical of his performance against Penrith a month ago but plans to make amends on Sunday afternoon.

Parramatta five-eighth Dylan Brown has pledged to right the wrongs from his team's qualifying final loss to Penrith when the western Sydney rivals meet again in Sunday's grand final.

Brown couldn't make his mark in that defeat by the Panthers, who ran away with the contest once Brown's halves partner Mitchell Moses left the field concussed after an hour.

Known for his dynamic running game, Brown finished the 27-8 loss with only 49 metres to his name and exerted limited influence on the contest with the boot.

But Brown has lifted his game in the two weeks since, and was especially potent in the semi-final demolition of Canberra, where he set a new personal-best record for running metres in a game (321).

When the Eels meet the Panthers in their first grand final appearance since 2009, Brown will go looking for the footy more than he did the last time the sides met.

"You can't not be in the game, especially in the position I'm in. I'm not a winger," Brrown told AAP.

"I've got to put myself in the game and I've got to put others in the game as well. If that left edge is on, I'm usually playing well, and if they're not on, it's usually my fault.

"I've got to get them the ball and make sure it's quality."

The last time the Eels played in the grand final, Brown was only nine years old and not yet a fan of rugby league, having grown up in an All Blacks-mad household in Auckland.

But come Sunday, if he makes good on his promise to ignite the Eels' left edge, the 22-year-old could become just the second five-eighth in history to win a premiership with Parramatta.

"It's honestly not a personal thing though," Brown said.

"You do it for the club, you do it for the fans. When it gets to stuff like this, it's an opportunity you've got to take and it's a responsibility as well."