Sedox Performance is your global source for professional tuning. Sedox Performance is one of the largest providers of engine-tuning and has a worldwide partner network ready to serve you. If you are looking for a performance upgrade of your engine you have come to the right place. Our partners will assist you with some of the safest and best-performing quality tuning in the market. In addition to our core business software upgrades of your engine's control unit many of our partners also offer other tuning parts styling wheels workshop and aftermarket cars for sale.