The Hyper MAX engine is the second best engine in the game, next to the Devil Engine. To obtain this engine, the protagonist must collect all 100 Choro-Q Coins and then go to Coine in My City and get them off his/her Choro-Q Coin Shop.
The engine has a air scoop attached to it, with the scoop sticking out of the hood like a drag racing car. It is the only engine to stick out except for the Devil Engine. Once it is unlocked, it can be bought at the Parts Shop at My City for 80,000 currency.
Despite the engine being incredibly fast at the racetrack, it is unreliable for exploration due to high energy consumption and should not be used with the Jet Turbine. However, when racing, there are two races that are so incredibly long, that you shouldn't even equip your Jet Turbine. These races are the Lagoon Raceway and the Miner 49er Raceway.
You can use this for getting the trophies that you missed in prior races and it can be used for winning the World Grand Prix several times.