To All,

Today APR is proud to announce the release of our C6 S6 and B7 RS4 Stage 1 Software readily available through DPP! Below you will find a wealth of information about the software.

APR Audi S6 (C6) 5.2L FSI V10 ECU Upgrade
APR is pleased to present the ultimate ECU Upgrade for the Audi C6 S6 5.2L FSI V10 engine. After months of long nights and many hours of testing, development and more testing, we are pleased to offer you an ECU recalibration that is second to none. APR's extensive research and development provides you with a powerful ECU Upgrade with no loss of drivability or reliability. Expect increases in low-end torque, improved throttle response and a smoother, more powerful top end.
The Audi C6 S6 5.2L FSI V10 ECU Upgrade is an expertly recalibrated engine control strategy that remaps the timing and air fuel ratios to provide smooth and reliable power as if intended by the OEM. APR's ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. APR's ECU Upgrades are available in octane specific versions to allow you to take full advantage of the fuel quality available in your area. APR's patented EMCS functionality puts the control of the engine's operation at your finger tips and allows for additional features and options to be installed to your OEM ECU.
Stage I ECU Upgrade
Not only does our Stage I ECU Upgrade give you higher peak numbers of 453 horsepower and 460lb-ft. of torque, but also gains of up to 20 horsepower are available at higher RPMs! APR's ECU Upgrade is the best power per dollar modification for the Audi C6 S6 5.2L FSI V10 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory like smoothness and drivability APR's ECU Upgrade will fill the void in an otherwise excellent car.
Dyno Performance
To All,

Today APR is proud to announce the release of our C6 S6 and B7 RS4 Stage 1 Software readily available through DPP! Below you will find a wealth of information about the software.

APR Audi S6 (C6) 5.2L FSI V10 ECU Upgrade
APR is pleased to present the ultimate ECU Upgrade for the Audi C6 S6 5.2L FSI V10 engine. After months of long nights and many hours of testing, development and more testing, we are pleased to offer you an ECU recalibration that is second to none. APR's extensive research and development provides you with a powerful ECU Upgrade with no loss of drivability or reliability. Expect increases in low-end torque, improved throttle response and a smoother, more powerful top end.
The Audi C6 S6 5.2L FSI V10 ECU Upgrade is an expertly recalibrated engine control strategy that remaps the timing and air fuel ratios to provide smooth and reliable power as if intended by the OEM. APR's ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. APR's ECU Upgrades are available in octane specific versions to allow you to take full advantage of the fuel quality available in your area. APR's patented EMCS functionality puts the control of the engine's operation at your finger tips and allows for additional features and options to be installed to your OEM ECU.
Stage I ECU Upgrade
Not only does our Stage I ECU Upgrade give you higher peak numbers of 453 horsepower and 460lb-ft. of torque, but also gains of up to 20 horsepower are available at higher RPMs! APR's ECU Upgrade is the best power per dollar modification for the Audi C6 S6 5.2L FSI V10 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory like smoothness and drivability APR's ECU Upgrade will fill the void in an otherwise excellent car.
Dyno Performance

APR Audi RS4 (B7) 4.2L FSI V8 ECU Upgrade
APR is pleased to present the ultimate ECU Upgrade for the Audi B7 RS4 4.2L FSI V8 engine. After months of long nights and many hours of testing, development and more testing, we are pleased to offer you an ECU recalibration that is second to none. APR's extensive research and development provides you with a powerful ECU Upgrade with no loss of drivability or reliability. Expect increases in low-end torque, improved throttle response and a smoother, more powerful top end.
The APR Audi B7 RS4 4.2L FSI V8 ECU Upgrade is an expertly recalibrated engine control strategy that remaps the timing and air fuel ratios to provide smooth and reliable power as if intended by the OEM. APR's ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. APR's ECU Upgrades are available in octane specific versions to allow you to take full advantage of the fuel quality available in your area. APR's patented EMCS functionality puts the control of the engine's operation at your finger tips and allows for additional features and options to be installed to your OEM ECU.
Stage I ECU Upgrade
Not only does our Stage I ECU Upgrade give you higher peak numbers of 431 horsepower and 392lb-ft. of torque, but also gains of up to 21 horsepower are available at higher RPMs! APR's ECU Upgrade is the best power per dollar modification for the Audi B7 RS4 4.2L FSI V8 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory like smoothness and drivability APR's ECU Upgrade will fill the void in an otherwise excellent car.

http://www.goapr.com/products/ecu_upgrade_52fsi.html

http://www.goapr.com/products/ecu_upgrade_42fsi_rs4.html

 

looks like some decent gains and the gains near redline are what i felt both cars needed when i drove them. the gains for the rs4 are very impressive above 7000rpm. It must make it really pull near redline not that it didnt pull before. Any word on the new s4 and soft ware? I know the gains in europe have been very impressive.

 

Software should be ready soon if its not out already. APR already bought one for their race team in the koni race car challenges

 

No S5

 

does this alter the fuel economy of the car? does the gain in torque/hp decrease the mpg?

 

I must be misunderstanding something, so please explain this to me: I have the R8 4.2 which should have the same engine as the RS4. The stock peak torque is 317 lb-ft and nowhere near 387 lb-ft. Why the discrepancy?

 

Something isn't right with that dyno chart for the RS4. The peak torque should be around 315-320 not 380+ stock. If your chip makes the RS4 put out 80+ ft-lbs by itself you guys are going to make a killing!! Recheck your math guys...

 

So let me get this right, that stock RS4 put down 421awhp?!? there is no way that is possible. How is a car that is rated 420 crank from the factory going to make more than that to all four wheels?

 

Crank numbers... not wheel.

Give us the wheel numbers, crank figures mean nothing.

 

yeah no way it does 420 awhp i say 350 tops.