The B8.5 Audi S4 is an amazing performance sedan, however, its appearance as it rolls off the factory floor is about as exciting as a gallon of milk – there’s no fun to be had getting lost in the crowd, which is why Mod Expert Emeritus Michael Chen brought his S4 back to the team at Mod Auto to make this S4 a lot more exciting.

So that’s what our stock front end looks like to give you an idea of the comparison.

To give Michael’s Audi a more interesting look, we’ll be fitting some goodies from DEVAL. A Deval Carbon Fiber Rear Diffuser for B8 Audi S4 is a brilliant compliment to the car’s AWE Tuning Quad Exhaust, while the Deval Carbon Fiber Front Splitter for B8 Audi S4 enhances front end aesthetics – the combined effect really dials up the aggression.

Already equipped with an AWE Tuning Touring Quad Exhaust system for B8 Audi S4, Michael’s S4 still needed that ‘something extra’ to make the car look like it ought to, and that Deval diffuser should really make those quad tips “pop”.

With a little bit of finesse, the Deval Carbon Fiber Rear Diffuser for Audi B8 S4 now looks like it was always meant to be there.

Here’s a closeup of the diffuser. In addition to installing the Carbon Fiber, we’d also done something to help the S4 look as amazing as possible, whatever the situation called for…
Here’s a quick look at what the Deval Rear Diffuser looked like fitted.

We’d converted the car to an Airrex Air Suspension System. The  Airrex Air Suspension For Audi with Airrex Digital Management works as a package for a more straightforward, easier-to-use air setup than many competing systems.

The control setup is all housed in this nice little box, keeping your trunk neat and tidy.

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Tucking the Avant Garde M590 wheels a bit, the S4 looks incredible.

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Up front, the addition of the DEVAL Carbon Fiber Front Splitter has really made the difference and gives the S4 a new dimension.

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

This kind of stance is simply not possible for a statically lowered car – but with air, just hit the switch to air it out and watch jaws drop.

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

There’s only so much we can say that the car doesn’t already say for itself, so check out the rest of the photo gallery below.

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Avant Garde M590 Brushed Grigio Powdercoat 19×9.5 ET40 on Hankook Ventus V12 Tires
on Airrex Air Suspension with Airrex Digital Management

Thanks for joining us, we hope you enjoyed the photos.

Interested in modifying any aspect of your B8 or B8.5 Audi S4? Check out our guide to the Best Mods for B8 Audi S4, then consult our team of Modification Experts. Each member of our team owns and modifies their own personal vehicles and have years of firsthand experience building modified cars – give them a call at 714-582-3330, chat live at ModBargains.com or just stop by the ModAuto showroom (which is also our install facility) in La Habra, CA on Lambert Rd at Harbor Blvd Monday thru Saturday, 8am – 5pm PST.

Thanks for reading, and we’ll see you next time!

Story & Photos by Nick Gregson