Can you hack Mario kart wii with out homebrew channel?

1 Download Gecko OS app for Homebrew.

2 Download Code Manager for PC

3 Use your favorite search engine to find codes, and the game ID ( MarioKart is RMCE01)

4 Using Code Manager, create a new TXT file, and input the codes.

6 Click export to GCT

7 Place the Gecko OS app in the app folder on the root of your SD card (make this folder if it's not already there)

8 Turn on your Wii and insert the SD card.

9 Run the Homebrew Channel and choose Gecko OS.

10 Choose Run Game

It should say that it is loading SD codes after a moment. If it doesn't, you probably did something wrong. Test codes offline first (unless they only work online) remember that not all codes work online. (most of them work for mariokart)

11 Have Fun. :D