The Cumbrian side currently occupy the second and final relegation place in League Two but are within striking distance of a number of clubs above them, including the Cobblers.
And Curle's opposite number Chris Wilder is all too aware of that after revising downwards his ambitions for the season in the wake of last weekend's defeat against Plymouth.
Carlisle have reduced prices for the game and Curle told his club's official website that 'the more noise and support we've got, the better.'
Their home form at Brunton Park has held up relatively well so far this season with four wins and two draws from ten games to date.