Here is my build thread.
A lil about a car:
Audi S6 Avant is only available in US as Avant you can get a Sedan in Germany.
S6 was imported only during 2002-2003 years.
Total lf about 1100 S6s were brough to US.
Aproximately 900 in 2002 and 211 in 2003.
Car specs:
Engine is an all-aluminium alloy 4.2 litre 40-valve (five valves per cylinder) 90° V8 petrol engine, with twin double overhead camshafts and solenoid-operated magnesium two-stage variable intake manifold .
It displaced 4,172 cubic centimetresand was DIN-rated at 340hp at 6,600rpm, producing 310 ft·lbf of torque at 3,400 rpm.
Transmission ZF 5HP24 five-speed tiptronic automatic transmission with steering wheel-mounted paddle-shifters
gear ratios:
1st: 3.571
2nd: 2.200
3rd: 1.508
4th: 1.000
5th: 0.803
final drive ratio: 2.909
The suspension on the S6 was stiffened and lowered by 10 millimetres.
The body panels were largely based on the Audi A6 4.2 model, with slightly flared wheel arches and door sills, with the hood and front wings being constructed from aluminium. Other features included S6 badging, bolstered seats, polished aluminium exterior door mirror housings and unique front grille.
The day i bought her ( July 2007 )
Shortly after that i got new wheels and Milltek catback

Looking for more power i came across new set of Milltek downpipes
Fabricated an open element intake from B6 S4
Got tired of the wheel gap and got a set of H&R coils
But the ride was too harsh due to the high spring rate so i got a set of PSS9
Also started working on a set of brakes
Carbonfiber interior trim and RNS-E came in from Germany
Finished the brakes
Got the car chipped by Unitronic
RS6 plus pedals came in from Germany
Wired and recoded S4 steering wheel
Clear corner mod
Then got this noisy thing installed
Now im weiting to get some time to intall the EFK from Vast