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Hi Jay762, Spt are Subaru parts. They can be ordered from subarupartswarehouse.com.

Hello, the check engine light could be any number of different sensors. Without looking at the vehicle it is difficult to diagnose. But we recommend upgrades offered by SPT - Subaru Performance Tuning. Feel free to ask any more questions to us anytime. www.PremierSubaru.com Ask Bob or click on service tab and ask anyone .