Project Atlas
Last year in July, I got quite lucky and picked up one out of a handful(literally) B6 S4s in Atlas Gray. Yeah you heard it right Atlas Gray B6 S4, they do exist out there in the wild. I happened to be one lucky guy(out of very few).
Now a little lesson on the color itself and rarity of Atlas Gray B6 S4s. Atlas Gray is mostly known as B6 A4 Avant color. It was an option in a factory line up of colors for 2002 B6 A4 sedans and only a special order for same year B6 A4 Avants. For the following years 2003 through 2005, Audi decided to switch it up. Meaning, it was never offered for A4 sedans again as an option, unless you pony up and special order it, for A4 Avants though it became an optional color choice and hence quite a popular one at that time. Now on the other hand, Atlas Gray was never an optional exterior color choice for B6 S4s both sedans nor avants. Therefore the only way you could get your B6 S4 in this color is by special ordering it and paying up some extra on top. IIRC $2500. According to AOA, only five Atlas Gray B6 S4s were ever made for and sold in US market. Here’s the breakdown:
MY2004: 2 Manual Sedans, 1 Manual Avant
MY2005: 1 Manual Sedan(mine ;D), 1 Automatic Sedan
So technically mine is one of a kind or one out four sedans, one out of four manuals, one out of five Atlas Gray B6 S4s ever built for the US market. Now the true unicorn ladies and gentleman, to me at least, is the only Atlas Gray B6 S4 Avant! One of a kind anyway you look at it. Current owner is one lucky fella to have such a rarity in his stable.
The priority of this build thread is as follows:
- Maintenance
First and foremost, I’ll be catching up to all of the maintenance that is overdue along with some preventative stuff, so I could sleep at night. - Handling
- Performance
I’ll be going all the way with this beast, but one step at a time. - Aesthetics
All of the cosmetic mods will be squeezed in here and there in between the above three stages, except for an expensive stuff, which will be left for the very last. At least that’s the master plan, but you never know when a great deal comes along that’s hard to pass.
I’ll be documenting every single change of my car as it happens with lots of pictures, part #s, reviews, etc… Hopefully this thread will be as exciting for you to follow as it is for me to build my dream B6 S4, perhaps daunting at times, but mostly fun 
Keep in mind, I’m not here to gain approval of the masses, however constructive criticism and suggestions are always welcome. Furthermore whenever someone finds any of the information I put into this thread useful in some way or another and has a positive feedback, it’s always welcome like an icing on a cake 
The car will not only be a garage queen, but will also be taken through different kinds of performance measurement methods to assess real world performance gains from each and all of the modifications.
Subject:
2005 Audi S4 sedan Quattro MT6
4.2L V8 DOHV 40V
340 hp @ 7000rpm
302 lb.-ft. @ 3,500rpm
GVWR 2230kg/4916lbs
Atlas Gray Metallic Exterior
Black Nappa Leather Interior
6-Speed Manual Transmission
Premium Package:
[]Glass Sunroof (W/Power, Tilt, Slide)
[]Homelink ® Remote Transmitter
[]Auto-Dimming Interior Mirror W/Compass
[]Auto-Dimming Exterior Mirrors
[]Memory For Driver Side Seat Adjustment
[]Memory For Driver Side Mirror Position
[*]Light Sensor PackagePremium Audio Package:
[]Bose® Premium Sound System
[]XM® Satellite RadioHeated Front Seats
Power Rear & Manual Rear Side Sunshades
Carbon Fiber Interior Trim
E0A = No special edition
7A0 = Without CD changer/CD player
4UB = Air bag for NAR
6XL = Exterior mirrors: with memory function, automatically dimming, electrically foldable/adjustable/heated
5SG = Left exterior mirror: flat
5RW = Right exterior mirror: convex (US) large viewing field
1KE = Disc brakes, rear
J1U = Battery 450 A (95 Ah)
1LJ = Disc brakes, front
1BD = Suspension/shock absorption for special sports design
3FE = Electric slide/tilt sunroof with sun screen/sunblind
5MK = Decorative inserts, carbon weave
7X0 = Without park distance control
4R4 = Power windows with comfort operation andcircuit breaker
F0A = No special purpose vehicle, standard equipment
8GH = Alternator 190 A
0G1 = Gearshift lever
0YM = Weight range 12 installation control only, no requirement forecast
0JL = Weight category front axle weight range 11
T79 = 8-cylinder gasoline engine 4.2 L unit 079.C (aluminum)
3NZ = Rear seat bench unsplit, backrest split folding
8EH = Bi-functional headlight with gas discharge lamp, for driving on the right(US design)
U1B = Instrument insert with mph speedometer, clock, tachometer and trip odometer
X9A = National sales program USA
1N3 = Speed-related variable steering assist (Servotronic)
2PL = Leather trimmed sports steering wheel for air bag system with “S” badge
8Q3 = Automatic headlight-range adjustment dynamic (self-adjusting while driving)
9Q4 = Multi-function display/on-board computerwith check control
8Z6 = Hot country
D5E = 8-cyl. gasoline engine 4.2 L/253 kW 40V multi-point injection base engine is T79
7Q0 = Without navigation device
CS1 = Alloy wheels 8J x 18
7K0 = Without tire pressure warning light
4X3 = Side air bag front with curtain air bag
2K4 = Standard bumpers
6R2 = Leather gearshift boot
3L4 = Electric seat adjustment for both front seats, drivers seat with memory system
4KC = Side and rear windows in heat-insulatingglass
3Y5 = Electrically operated roll-up sun screenfor rear window and mechanically operated for side windows
4K8 = Radio remote controlled central locking operated from inside, front and rear and separate trunk release “SZV”
5D2 = Carrier frequency 315 MHz
1SA = Without additional front underbody guard
0GM = Emission standard LEV 1
Q1E = RECARO sports seats, front
4GP = Windshield in heat-insulating glass withsunshield and viewing window for vehicleidentification number
Extras from PO:
[]Audi all-weather sport floor mats
[]Pioneer head unit w/navigation
[]S4 brake caliper clips
[]Front Euro License Plate Bracket
[]Tinted windows
[]F&R red painted brake calipers
[]SS brake lines
[]F&R drilled&slotted rotors
[*]Miro-111 19x9.5 ET40 on 245/35/19 Goodyear Eagle GT
Since everyone here loves pictures, and so without further delay:
Driving back home from Augusta, GA the day I purchased this gem 
Couple of reflection shots of the Miro 111s as well as assistant perpetrator