Anyone can tell me what HO and SDI means in the Ski-Doo BRP engines? For example the 600 HO sdi ..? Some are SDI, some aren't. Some have HO in the name, some don't... What's the difference?Ski-Doo BRP Engines?
HO means high output. Most stock sleds you can make some slight modifications to the engine to get more power out of it. High output means that they did most or all of the modifications to the engine. SDI is a electronic fuel injection. If it doesn't say SDI, It's a carburetor model. SDI is nice if you ride in different altitudes because you don't have to rejet. It also gives you better fuel mileage.
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