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Audi S8 (D3/4E)
+45 HP / +48 LB-FT
82mm throttle body kit and RENNtech stainless steel headers for a gain of +44 HP and +66 TQ over stock
While slippage in the torque converter is important under acceleration
RENNtech HHT ECU Upgrade for GL 320 CDI (X164- 253 HP / 464 LB-FT) range-rover--322-lm---2009-2012--5-0l-supercharged-v8--aj133--esr9160116 Audi S8 (D3/4E)RENNtech HHT ECU Performance Upgrade for 166 GL 320 CDI. up to 253HP and 464LB FT. Gains: +23HP & 75LB FT RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming