STaSIS Audi S4 image

American tuner STaSIS Engineering has teamed up with APS of Brackley to present the Audi S4 Signature Series in the UK. The result: 410 horsepower and 370 pound-feet of torque.

The Touring Edition combines the significant power and torque increase with aggressive suspension and bespoke wheels to Audi’s signature sports saloon to deliver additional poise and grace. Challenge Edition comes with more hardcore components such as larger brakes with 6-piston callipers and ultra-lightweight forged aluminum wheels.

Prices start at £12,500 and the upgrades can be ordered from Audi specialist APS of Brackley.

stasis-audi-s4-2

Signature S4 Touring Edition

* Exhaust – Quad outlet with tunable low RPM resonators
* Engine – Engine Tuning Software – performance increases to 410 bhp (416 hp) / 370 lb.ft (502 Nm)
* Suspension – 1 inch lower, Increased spring rate, anti-roll bar kit and matched bushings & bump stops
* Brakes – Optional high-performance street pads and braided stainless steel lines
* Wheels – 20 inch x 8.5 inch lightweight cast aluminum wheels, Optional 19 inch x 9 inch lightweight cast aluminum wheels
* Tyres – High performance

Signature S4 Challenge Edition

* Exhaust – Quad outlet with tunable high RPM resonators (recommended for manual transmission)
* Engine – Engine Tuning Software – performance increases to 410 bhp (416 hp) / 370 lb.ft (502 Nm)
* Suspension – Ohlins SL dampers, increased spring rate and high performance anti-roll bar kit
* Brakes – 6-piston Alcon monobloc calipers, 370 mm 2-piece discs (390-mm optional), stainless steel brake lines & high-performance pads
* Differential – high-bias centre differential (manual transmission only)
* Wheels – 20 inch x 9.5 inch ultra-lightweight forged aluminum wheels
* Tyres – extreme performance