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Intakes, Intercoolers, Downpipes, Crank Hub Fix & more

BMW S55 Engine Tuning & Performance Parts

Browse high-quality engine tuning & performance parts to make your S55-powered BMW faster, louder & more exhilarating. Improve reliability at the same time!

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated race only and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may be in violation of local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer. Read more at section 22 in our full terms of service here.