BMW 550i Tuning Box Kits

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	VR Tuned ECU Tuning Box Kit BMW 550I F10 42HP Gain Model Number: VRT-121170-4 View Price New from VR Tuned is this performance Tuning Box kit for the BMW 550I F10 twin turbo V8 4.4L . This tuning box kit is a plug and play solution to tune your cars fuel, timing, and boost giving you up to 40% more power and 20% fuel savings. The VR Tuned ECU Tuning Box Kit gives your turbocharged BMW 550 engine a gain in power from 450bhp to 492bhp gaining you 42hp! Plug and Play for easy removal to avoid warranty issues Designed for turbocharged vehicles only Does not lock to vehi...