North American VAG performance house STaSIS Engineering has launched the Signature Series for the Audi S4. The enhancement package includes powertrain, suspension and braking upgrades.
The original 3.0-litre supercharged TFSI V6 engine (333bhp and 344lb.ft of torque as standard) has been tuned up to 410bhp and 370lb.ft.
Two Signature Series models will be available.
The Touring Edition is a lighter version, while the Challenge is more aggressive. The Touring Edition features the above mentioned engine conversion along with a tuned, quad-outlet exhaust system with low-speed resonators, lowered suspension by 25mm, increased spring rate, anti-roll bar kit, optional high-performance brake pads and braided stainless steel lines, 20- and optional 19-inch cast aluminium wheels and high performance tyres.
The Challenge Edition uses the same engine and exhaust, along with Ohlins SL dampers, increased spring rate, anti-roll bar kit, six-piston Alcon monobloc callipers, 370mm (and optional 390mm) two-piece brake discs, high-bias centre differential, 20-inch forged aluminium wheels and extreme performance tyres.
Prices start from £12,500 including 20 per cent VAT and installation. Individual items are available for purchase. Audi specialist APS of Brackley is the appointed dealer of these packages for the UK.
Other STaSIS performance parts are available for the Audi R8, TT, S5, A6, A5, A4 and A3 along with further VAG products.
Gábor Vajda - 21 Feb 2011