If you are a fan of modified German sedans with big power output, then you will definitely appreciate our new feature dedicated to this 2016 Audi S6. It’s the C7.5 body style and features the mid-cycle design refresh of the 4th generation A6 models.
Unlike the basic “A” models, this one is equipped with one of the most capable twin-turbo V8 engines with a relatively small displacement of only 4.0L, which produces an impressive 420 horsepower in stock form. But it looks like this number didn’t really satisfy the owner of this S6, so he decided to go further in terms of performance and squeeze more horsepower out of this engine.
“A sleeper by nature, it hides its staggering capabilities behind an unassuming yet dignified exterior”.
The Build
Audi’s famous Quattro all-wheel drive and 7-speed S-tronic dual-clutch transmission are responsible for equally distributing massive amounts of torque produced by this awesome engine between all four wheels and delivering stunning 0 to 60 runs.
“the S6 has always held a unique position within the realm of performance sedans”.
Mods & Upgrades
Performance
The car now features a Stage 3 Plus performance enhancement which makes it even more capable than the higher-level RS6 models. Among the performance upgrades are RS7 turbos, DS1 E85 flex fuel tune as well as APR TCU tune, cooling systems, and a complete performance intake-exhaust system, which consists of the SRM air intake with throttle body spacers, APR downpipes, ECS X-pipe, OEM Audi Sport exhaust, and many other parts
Exterior
Staying true to Audi’s subtle performance design, the owner decided to keep it relatively stock with an addition of stylish OEM Plus upgrades instead of fitting aggressive body work and overfenders.
He opted for a time-tested carbon fiber look and chose Karbell CF front splitter, side skirts, and rear diffuser to play on contrast with the diamond white paintjob. Up top, the carbon fiber theme continues with a 3M PPF carbon fiber roof and side view mirrors. The stock grille was swapped with a carbon fiber alternative too.
“Exterior modifications on this S6 are subtle yet effective”.
Suspension
To improve the handling and achieve a lower stance, the owner has made several upgrades to the suspension department. The factory air suspension was locked in the lower position thanks to the CETE lowering module that allows adjustment on the go even from a smartphone. The S6 was also outfitted with SPC adjustable control arms, Eurocode aluminum chassis brace, and Eurocode sway bars and end links. All of these upgrades allowed for a stiffer suspension and helped achieve that ground-hugging look.
Wheels
Factory wheels were replaced with a set of 21-inch Rotiform SFO rims wrapped in Michelin Pilot Super Sport 285/30/21 tires. Center caps in black carbon fiber were added to match the overall carbon fiber theme of the car.
List of Parts Used
Wheels
- 21×10 Rotiform SFO Rims
- Michelin Super Sport 285/30/21 tires
- Acer black titanium lug bolts
- Custom Rotiform center caps in Bordeaux carbon fiber ro match calipers
Suspension
- Cete lowering module
- SPC adjustable control arms
- Eurocode Alu kruez chassis brace
- Eurocode sway bars & end links
Performance
- Stage 3 plus
- RS7 turbos upgrade
- DS1 E85 tune flex fuel
- Autotech HPFP’s
- APR TCU tune
- APR CPS cooling system (black anodized)
- APR down pipes
- ECS x pipe
- SRM intake
- SRM throttle body spacer
- Audi sport exhaust (factory)
- JXB driveshaft carrier with ARP hardware kit
- APR ignition coils
- Eurocode billet trans and diff mounts
- Stainless steel brake lines
- All factory fluids flushed out with Motul lubricants (engine, trans, cooling)
Engine dress up
- Battery terminal cover
- A/C line caps
- CF engine slam panel, and much more getting done by @carbonmodifications
Interior
- P3 gauge as well as the DS1 display with Samsung tablet
- CF rearview mirror
Exterior
- Karbel CF front splitter,
- Karbel CF side skirts
- Karbel CF diffuser
- Karbel CF brows all prepreg Carbon Fiber
- Complete car Nano Fusion PPF and Ceramic coated with Ceramic Pro (interior, exterior, wheels,brakes,etc)
- STEK PPF carbon fiber roof
- CF side view mirrors
- Custom OEM looking carbon fiber front grill rings and gas caps.
Conclusion
This C7.5 Audi S6 perfectly represents what we love about modern German performance sedans – subtle looks combined with brutal power. Going way beyond its stock 420hp configuration with a Stage 3 Plus setup and RS7 turbos, this S6 demonstrates how the 4.0TT platform responds incredibly well to modifications. This build focuses heavily on performance and handling and features must-have suspension and engine upgrades. The overall score reflects a serious performance-oriented build that stays true to the sleeper nature of this Audi C6 build with subtle exterior upgrades.
Build Complexity Score:
| Parts Category | Difficulty Rating* |
|---|---|
| Suspension Mods: | 8/10 |
| Performance Mods: | 10/10 |
| Exterior Mods: | 10/10 |
| Interior Mods: | 2/10 |
* Based on our build difficulty evaluation system ⓘ
Performance mods dominate this build with an impressive 10 points, featuring a comprehensive array of upgrades from RS7 turbos to a complete intake-exhaust overhaul. The suspension setup scores 8 points thanks to its sophisticated air suspension management system, while the exterior maintains a clean OEM+ aesthetic with strategic carbon fiber additions totaling 6 points. The interior remains relatively stock with subtle carbon fiber accents, scoring 2 points, proving that sometimes less is more in a German performance sedan.
Watch the progress and find out more about this Audi S6 project by visiting the Instagram profile of the owner: @gmbh_apr_c7.5!
📸 Photography by: @food4rollers / @food4audis and @turn9_images
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