Sportec RS425 based on Audi S4 Avant

By Thami Masemola
September 14, 2009 7:38 PM
Filed Under: Audi, German, Tuners

Quick mamas are in for quite a neat treat. Tuning firm Sportec has taken the stock Audi S4 Avant and made it something a bit more interesting. By remapping the engine control unit and installing sport air filters, more power and torque have been extracted for the car they call the Sportec RS425.

Where the ordinary cargo pusher makes 245kW (333hp), Sportec has gifted it with 313kW (425hp) which just about matches the previous-generation RS 6. And where your neighbourhood mama gets 440Nm out of her S4 Avant, the RS425 option will give out a compelling 520Nm. The 0 - 100km/h time has been slashed from 5.6 seconds to 5.2 seconds, making the proverbial supermarket run something of a breeze. Top speed is electronically limited to 250km/h, same as in the factory car. All that performance comes from the supercharged 3.0-litre V6.

Other upgrades include a carbon fibre front spoiler, a special sports silencer, four tailpipes (two on either side), a carbon fibre rear diffuser, a lower suspension system and 9 x 20 inch large lightweight metal rims wrapped in 245/30 tyres.

Source: Sportec

Press Release (Click to expand)

Sportec Audi S4 Avant: The Powerful Swiss Estate Car

An Audi S4 with its 333 compressor-PS is no mean thing on its own but the Swiss tuner thinks
differently and by applying specific techniques has pushed the vehicle from Ingolstadt way over the 400 PS mark.

A newly programmed engine control and the installation of a sports air filter coaxes a full 425 PS instead of the standard 333 PS from the three litre V6 compressor. The maximum torque has also been distinctly increased by improving the electronics. Instead of 440 a maximum 520 Nm can now be called upon. A plus factor that is noticeable in the driving dynamics. Whereas the standard Audi S4 needed 5,6 seconds to accelerate from zero to 100 km/h the Sportec RS425 only needs 5,2 seconds. At top speeds, though, they are equal as both vehicles are electronically blocked at 250 km/h.

However Sportec is not content with solely an upgrade. A special sports silencer with four end pipes - two pairs on either side right and left - provide a more sporty sound. A braking system on the front axles enlarged to 380 millimetres ensures improved braking power. On the other hand chassis clearance has been reduced as Sportec has fitted the Audi with a suspension kit shortened by a progressive 25 millimetres.

In addition the Sportec RS425 is fitted with 9 x 20 inch large lightweight metal rims surrounded by 245/30 tyres. The Audi S4's new look is rounded off with a diffuser at the rear and a spoiler at the front, both of which are made of carbon.