Step 10 ( 7:21) - Donate $10,000 to the Epsilon website. Dinka Double-T) Step 8 ( 4:58) - Go to the next Epsilon symbol (takes some time until it shows up on your map, go to sleep in your safehouse again). ( 4:21) - Collect all five Epsilon vehicles (5. ( 3:57) - Collect all five Epsilon vehicles (4. ( 3:36) - Collect all five Epsilon vehicles (3. ( 3:16) - Collect all five Epsilon vehicles (2. ( 2:31) - Collect all five Epsilon vehicles (1. Step 6 ( 2:12) - Go to the next Epsilon symbol (takes some time until it shows up on your map, go to sleep in your safehouse again). Open the attached link and donate $5,000 to the Epsilon website. Step 5 ( 1:54) - After the cutscene you will get an e-mail. Go back to your house and save the game a couple of times until the symbol shows up on the world map. Step 4 ( 1:39) - The Epsilon symbol will appear on the world map after some time. Open the attached link and donate $500 to the Epsilon website. Step 3 ( 1:09) - After the cutscene you will get an e-mail. Step 2 ( 0:45) - A question mark will show up in Raton Canyon after a while. Step 1 ( 0:05) - Open the internet browser of your in-game phone, go to the Epsilon website "" and complete the evaluation (how you answer the questions doesn't matter). So it's well worth the time and money investment. Doing all parts of the quest-line will cost at least $90,500 (so it's recommended that you attempt after the jewelry heist), but can earn you up to $2,100,000 in the end.
This quest-line becomes available very early in the game, once you've unlocking Michael as a playable character. The Kifflom! trophy/achievement is awarded for completing the Epsilon quest-line- which is among the most lengthy, tedious, and frustrating in the game- with Michael.