The Awesome Level Max Add-on for Trials Fusion has 5 achievements worth 250 gamerscore.
Reach the 40th side of the cube on Cubicle Space
Pass all tracks on the Awesome Adventure event
Find all squirrels on the RedLynx vs All-Stars event
Perform a zero fault run in Neo Bradford whilst wearing the Neo Hooligan outfit
Beat all of the RedLynx times on Redlynx vs All-Stars