APK MOD INFO
Name of Game: Riptide GP2
VERSION: 1.3.1

Name of the cheat, mod, or hack (credits: wendgames):
-UNLIMITED MONEY

Riptide GP2 MOD APK 1.3.1 (Unlimited Money)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb