RENNtech ECU HHT Upgrade for GL 450 (X164- 402 HP / 405 LB-FT) audi-s8--d3-4e---2006-2010--5-2l-v10-esr7428051 The RPS wheels are highly

The RPS wheels are highly refined to achieve a perfect fit by considering maximum width

RENNtech performance software unleashes the true potential of your Mercedes

017 HP and 871 LB-FT @ crank with 100 Octane Fuel

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Canards are applied with double sided tape and can be removed without damage the paint or drilling into the bumper

RENNtech ECU HHT Upgrade for GL 450 (X164- 402 HP / 405 LB-FT) audi-s8--d3-4e---2006-2010--5-2l-v10-esr7428051 The RPS wheels are highlyRENNtech ECU HHT Upgrade for 164 GL 450. Up to 355HP, 353LB FT. Gains: +20HP & 14LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning software