⭐ RATED 4.7 STARS.

RATED 4.7 STARS

Leaders in aftermarket & carbon composite parts development for a variety of vehicles. We pride ourselves in our selection of premium styling and performance parts for a huge range of cars as well as a fantastic range of detailing products from renowned brands. With in-house quality assurance, wrapping and PPF service, fitment workshop at our London HQ, perfect is our only standard. See what our customers have to say in our reviews.

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R44 Performance

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BMW M340i Engine Tuning Parts (G20 & G21)

Modify & maintain your BMW G20 / G21 M340i's B58 engine with our range of engine parts. Shop servicing, intakes & more.

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76 products

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Featured Best selling Alphabetically, A-Z Alphabetically, Z-A Price, low to high Price, high to low Date, old to new Date, new to old

CSF Race X B58 Gen2 Charge Air Cooler Manifold 8400

CSF CSF Race X B58 Gen2 Charge Air Cooler Manifold (G20 M340i, G42 M240i, Toyota GR Supra & more)

Sale priceFrom £5,640.00GBP

Pure Turbos BMW G Series B58 PURE 850 Stage 2 Turbo - R44 Performance

Pure Turbos Pure Turbos BMW G Series B58 PURE 850 Stage 2 Turbo

Sale priceFrom £3,247.24GBP

Pure Turbos BMW G Series B58 PURE 800 Stage 2 Turbo - R44 Performance

Pure Turbos Pure Turbos BMW G Series B58 PURE 800 Stage 2 Turbo

Sale priceFrom £2,956.13GBP

Leib BMW G Series B58 B48 CatOPF Delete With CAN BUS Pro Functions - R44 Performance

LEIB Engineering Leib BMW M240i/M340i/M440i B58/B48 Cat/OPF Delete Kit With CAN BUS Pro Functions (G42/G20/G22/F40/F44)

Sale price£669.99GBP

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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.