How to improve a 1999 Ford Taurus SE sedan 3.0L V6?

So I bought my grandparents car off them and it runs well and I m not going for a full blown rally car I just want a sleeper that I can take to the track every now and again and be able to out perform a few unknowing friends, so how can I squeeze a little more hp out of it? (I don t care about suspension cause this is just a sleeper)

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