Upgrade stages ranging from 425 to 440 Hp for the 2.7T engine of Audi RS4.

Stage 1 and Stage 2 upgrades, are presented below.

Stock engine specs:
Capacity: 2671cc
bore x stroke: 81 x 86.4 (mm)
Compression ratio: 9:1
Turbocharger: K04
Revlimit: 7500 rpm

Power: 380hp
Torque: 440Nm

Stage 1:

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Power: 425hp
Torque: 570Nm

Stage 2:

Engine upgrades:

-Free flow air intake system
-Full 76mm exhaust with free flow catalytic converter
-Stage 2 Software upgrade

Engine performance:

Power: 440hp
Torque: 600Nm

Software upgrades:

Multimap Switching feature (only for models produced after 2001) :

map 1 - low power or stock power
map 2 - 95oct
map 3 - 100oct
map 4 - 100oct + watermethanol

* userSetable Antilag-Launch Control enabled

* Flatshift enabled

* EPC Shiftlight enabled

* Knock warning enabled (only for WaterMethanol setups)

Boost control is achieved using the OEM ECU and N75 valve.

Use of 95/100 octane fuel is mandatory.