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Throttle Response Controller with Bluetooth Audi A8 4.2L FSI 2011+ / Audi S4 06+ / Porsche 911/997
- Eliminate response delays in your vehicle's acceleration.
- Easy plug-&-play installation that does not void your
- 9 adjustable modes: eco, city, sport, sport+ total 36 variation (eco mode can also be used for better traction in snow or off-road)
- Improve fuel economy up to 20% with eco mode