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Stay away from the Unichip - it is an incomplete device and only deals with timing and fuelling, no boost control at all which means it requires a separate boost control device (AVC). This is all far too crude and a competent map of the Motronic microcontroller will do the job better. If someone wan...

Gentlemen, While it is possible that different orientation of the DV on some (??) cars will not make much difference apart from the noise, do not allow anyone to mislead you into saying there is no real orientation. There always is! Just think for a second what the purpose of the dump valve is and t...

Never more than 25mm, usually 22-23mm. All depending on individual cars and the tolerance percentage of the spring compression. This is why quattro gmbh state 20-25mm in their technical documentation.

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JR, The VERY best of all Motul oils is the V300 COMPETITION 15-50. No need to bother with others. Can only endorse the brake fluid. Unlike most others (including other 5.1 ones) this makes the brakes feel more surefooted and with a better feel through the pedal even at leisurely exploitation. Well p...

John,

The GmbH kit is actually Sachs dampers and Eibach springs.

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