It’s easy to go from Hated to Exalted with the Sons of Hodir faction just by completing the intro quest chain this week during Wrath of the Lich King Timewalking! The faction offers multi-seater mammoth mounts at Revered and Exalted, making it the perfect opportunity to increase your mount collection if you’re farming for the 
Otterworldly Ottuk Carrier mount.
Wrath Timewalking Reputation Buff
Sign of the Scourge this week increases reputation gains with Wrath of the Lich King factions from combat and quests by 50%.
Additional Reputation Buffs
The Spirit of Sharing during Pilgrim’s Bounty increases reputation gains by 10%. The 20th Anniversary Event buff increases XP and Reputation gains by 20%. You will receive another 10% from Darkmoon Faire starting December 1. All these buffs stack, so it is the best time to get Sons of Hodir up to Exalted.
How Many XP is Needed to Reach Exalted?
You will need 84,000 reputation to go from Hated to Exalted, and the Mending Fences and A Spark of Hope intro quests should be enough to get you to Exalted with the faction.
Where to Start the Sons of Hodir Questline?
Take the Crystalsong Forest portal to Dalaran from your portal room. Fly to K3 in Storm Peaks and talk to Gretchen Fizzlespark who offers the They Took Our Men! intro quest with the faction.
Mammoth Mounts
At Revered, you can buy 
Reins of the Ice Mammoth (Alliance) and Reins of the Ice Mammoth (Horde) faction mounts.
At Exalted, you can purchase Reins of the Grand Ice Mammoth (Alliance) and Reins of the Grand Ice Mammoth (Horde) faction mounts.
