What's different about the GM 2.0 ecotec 4-cylinder in the Saab 9-3 than in the Chevy Cobalt?

Caite_Bug

New member
Obviously it's built to be more refined for the Saab than the bottom-of-the-line Chevy. What are the engine components that are different and can make the same basic engine block so much different?
Motorhead- no Saab shares a body with a Chevy. However, the latest models are built on GM platforms. Although, said platforms have been customized and enhanced by Saab in Sweden. But I was asking about the engine, not the body.
 
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