"There can be no doubt that we have been improving our away performances, it is something that we talked about at the beginning of the season, but we have to go to Llanelli and be accurate with everything we do.
"It is going to be very, very tough, they have an experienced squad and we'll have to be clinical with the chances we create and come away with the right result."
Ulster currently sit in sixth place in the Magners league table on 25 points with Scarlets back in ninth on 17 points.
The Ulster starting line-up and replacements will be confirmed on Thursday afternoon.
ULSTER Squad (v Scarlets) - Backs (13): Cillian Willis, Isaac Boss, Paul Marshall, Ian Humphreys, Niall O'Connor, Paddy Wallace, Darren Cave, Ian Whitten, Timoci Nagusa, Andrew Trimble, Simon Danielli, Jamie Smith, Nevin Spence.
Forwards (14): Tom Court, Bryan Young, BJ Botha, Declan Fitzpatrick, Nigel Brady, Andi Kyriacou, Ryan Caldwell, Ed O'Donoghue, Dan Tuohy, Thomas Anderson, David Pollock, Willie Faloon, Chris Henry, Robbie Diack.