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VR Tuned ECU Tuning Box Kit Audi S8 4.0 TFSI 382 kW 520 PS 12-14 Model Number: VRT-121176 View Price New from VR Tuned is this performance Tuning Box kit for the Audi S8 4.0L TFSI turbocharged engine. 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 Audi 4.0L TFSI engine a gain in power from 520bhp to 619bhp gaining you 99hp! These tests were done on UK cars running 98 octane fuel. We also dyno tested a car here on 91octane which made ... |
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