Instruct: Classify Amazon reviews into positive or negative sentiment
Query: supercharged Mustang

This was a Christmas gift to my friend, Jeff. He was excited when he received it and took it on his one week vacation. He said that it addressed issues related to supercharging the 5.0 that he was concerned about, like compression ratio and cylinder heads. As soon as he returned he crawled ubder his car to verify that he had the recommended rear axle.