Mostly known for offering power upgrades to Porsche models, Sportec has this time developed a power kit that applies to the Audi S5.
The Sportec Audi S5 upgrade is available for the 2009 models onward that use the 3.0-litre TFSI V6 engine. Thanks to an ECU remap and a free flowing air filter the Sportec Audi S5 is now capable of producing 425 bhp @ 6,640 rpm and 520 Nm (379 lb-ft) of torque, which means 97 bhp and 80 Nm more than in the standard version.
The power increase enables the Sportec Audi S5 to reach 100 Km/h from a standstill in 4.6 seconds and hit a limited top speed of 250 Km/h.
Power is sent to the wheels through a seven-speed S-Tronic gearbox and pricing for the upgrade package is 1950 GBP.
APS Sportec press release :
APS of Brackley, UK importer for the Swiss Sportec range of exclusive
vehicle enhancements, is delighted to announce a new performance
upgrade for the 2009 onward models of the Audi S5 quattro coupé and
cabriolet using the 3.0-litre supercharged, V6, TFSI powerplant. 
Labelled the ‘Stage One’ upgrade, Sportec’s S5 performance
enhancement package consists of a free flowing air filter element and a
carefully developed ECU remap. In combination this has a dramatic effect
on the power characteristics of the supercharged 2995cc Audi engine,
with peak power increasing from 328 bhp at 6000 rpm to 425 bhp at 6640
rpm, a significant gain of 97 bhp.
Similarly, Sportec’s Stage One upgrade delivers a prodigious increase
in torque output on the Audi S5, producing a maximum of 520 Nm (379
lb.ft) at 4250 rpm, compared to peak figure of 440 Nm (325 lb.ft) from
the factory.
Careful development by Sportec’s technicians ensures that over 80% of
the maximum torque output is available from 2750 to 6250 rpm, which
both perfectly suits the characteristics of the car’s 7-speed S-Tronic
transmission and highlights the user-friendliness of the conversion.
The additional power and torque output realised by the Sportec Stage
One upgraded Audi S5 considerably enhances the in-gear and fast cruising
performance of the car, in keeping with its luxury GT credentials.
However, when exercised to the full, it reduces the 0-62 mph (100 kmh)
by 0.5 seconds to 4.6 seconds, while top speed is limited at 155 mph for
safety reasons.
Suitable for coupéand cabriolet models of the 3.0-litre TFSI
supercharged Audi S5, the Sportec Stage One upgrade is available now
from APS Sportec priced at £1950.00 fitted including VAT.

Source: APS Sportec