APR 2.0T FSI S3/Golf-R K04 Turbocharger System
APR's Transverse 2.0T FSI Audi S3 and VW Golf-R K04 Turbocharger System will upgrade your current 200hp and 207lb-ft Transverse 2.0T FSI Engine with the necessary OEM components from the European Audi S3 and Golf-R along with APR's Direct Compressor DV Recirculation Port, CNC Turbo Outlet and meticulously recalibrated Engine Management to produce 355 horsepower and 368lb-ft of torque on 100 octane gas.

*Injectors Sold Separately
Reliability, drivability and enhanced performance that cannot be bested are the highlights of APR's newest OEM-component based conversion package.
APR's engineers have expertly recalibrated the engine management system to allow for nearly flat torque delivery from 2500 rpm's to 5000 rpm's which results in a smooth linear pull throughout the power band. Keeping the track enthusiast in mind, this conversion package will not result in overpowering of the driveline but will allow for smooth acceleration to easily maintain control while cornering.
The Borg Warner K04 turbocharger selected by VAG engineers is perfectly sized for the 2.0 liters of displacement to allow for stout horsepower numbers as the rpm's increase with no fall off as redline approaches. This ensures plenty of power in the high rpm's for continued acceleration in the straights or for shifting back into the healthiest portion of the power band at the drag strip.
Compact, Stealthy & Reliable Design
One of the greatest benefits to the APR K04 turbocharger system is its simple, yet elegant design. APR's CNC machined direct compressor recirculation port on the OEM compressor cover significantly reduces engine bay clutter and saves the end user from the hidden costs of purchasing extra throttle body pipes, hoses, clamps and DV mounts for recirculating boost pressure. The compact design also removes extra charge piping volume to allow for lightning fast boost response and less locations for boost leaks. Furthermore, charge air pressure is directed directly at the compressor wheel which helps keep the turbo spooled upon lifting the throttle, minimizing turbo lag.
The OEM k04 turbocharger features a turbo muffler designed to reduce turbocharger sound in the cabin that also creates a restriction in the boost pressure delivery stream. APR removes the turbo muffler not only to enhance the sound of the turbocharger, but also to smooth the airflow across the previously baffled muffler section. This also eliminates the need to purcahse an OEM S3 turbo discharger pipe. A clean and simple CNC flange developed by APR's Engineering Team is bolted directly to the compressor cover in place of the OEM turbo muffler. A long mounting surface provides an excellent slip proof surface for mounting the silicon discharge hose and an o-ring between the flanges ensures a life of leak proof operation.
APR EMCS
Featuring APR's Patented EMCS program switching functionality and DirectPort Programming, APR's Engine Management Calibration for this conversion package allows for a range of Octane and situation specific calibrations to be installed simultaneously on your vehicle's ECU. These programs and features are able to be cycled through via your existing factory cruise control and activated in less than 20 seconds. You will be able to choose 1 to 4 of the following programs:
| Program | Torque | Horsepower | Redline | Speedlimit |
|---|---|---|---|---|
| Stock Mode | OEM | OEM | OEM | OEM |
| 91 Octane Performance | 320 Ft-LBS | 320 HP | 6800 | Unlimited |
| 93 Octane Performance | 335 Ft-LBS | 323 HP | 6800 | Unlimited |
| 100 Octane Performance | 368 Ft-LBS | 355 HP | 6800 | Unlimited |
| Valet Mode | Limited | Limited | Limited | Limited |
*It is essential to ensure your vehicle is filled with at least the minimum octane rating for each Performance Calibration when activating the program.
Dyno Performance

NOTE Do not be fooled by claims from lesser tuners, a DSG reflash IS NOT Required to achieve the advertised power claims with an APR ECU Upgrade.
Installation can be performed at any APR Dealer and all parts necessary for the installation except for fluids are included. For best results, APR highly recommends our Carbonio MkV Intake and an APR Intercooler. An APR Full Exhaust system is required.
| Packages | Part Number | Price | |
|---|---|---|---|
| APR S3/Golf-R K04 Turbo System |
T2100011 | $2,249.99 | Buy one Now! |
| APR S3/Golf-R K04 Turbo System w/ Software |
T2100012 | $2,649.99 | Buy one Now! |
Note: APR K04 Software, APR High Pressure Fuel Pump and OEM Bosch K04 Injectors ARE REQUIRED!
| Vehicle | Engine | Engine Codes | Transmission | ||
|---|---|---|---|---|---|
| ¹ Power levels from this kit may be too high for a stock Tiptroinc transmission. APR highly recommends transmission upgrades to support these power levels. | |||||
| Audi A3 8P | 2.0T FSI | AXX, BPY & BWA | 6MT & S-Tronic | ||
| Audi TT MKII | 2.0T FSI | AXX, BPY & BWA | 6MT & S-Tronic | ||
| SEAT LEON 1P | 2.0T FSI | AXX, BPY & BWA | 6MT & DSG | ||
| Skoda Octavia 1Z | 2.0T FSI | AXX, BPY & BWA | 6MT & DSG | ||
| VW EOS | 2.0T FSI | AXX, BPY & BWA | 6MT & DSG | ||
| VW Golf/GTI MKV | 2.0T FSI | AXX, BPY & BWA | 6MT & DSG | ||
| VW Jetta/GLI MKV | 2.0T FSI | AXX, BPY & BWA | 6MT & DSG | ||
| VW Passat B6 | 2.0T FSI | AXX, BPY & BWA | 6MT & Tiptronic¹ | ||
| Software | Engine | Price | |
|---|---|---|---|
| Existing APR Software Customers | 2.0T FSI | $299.00 | Buy One Now! |
| New APR Software Customers | 2.0T FSI | $899.00 | Buy One Now! |
| Options | Pricing |
|---|---|
| ¹Prices applicable to the North American market only. | |
| ²Due to many variations between ECU's some programs/options may unavailable. | |
| For a total of 2 programs (i.e. - Stock and Chipped)² | $149¹ |
| For a total of 3 programs² | $219¹ |
| For a total of 4 programs² | $289¹ |
| Options | Pricing |
|---|---|
| ¹Prices applicable to the North American market only. | |
| ²Due to many variations between ECU's some programs/options may be unavailable. | |
| Security Lockout² | $59¹ |
| Fault Code Erase/Throttle Body Alignment (FCE/TBA)² | $59¹ |
| Anti-Theft System² | $199¹ |
Motul Oil, Coolant and Oil Filter
To learn more about Motul, visit our Motul Portal
Part of the APR Turbocharger System install process requires removal of the OEM Turbocharger. During this process, oil and coolant must be drained and should be replaced to offer superior performance and protection. The APR Turbocharger Systems are now complete turn key solutions, including everything you need down to the oil, coolant and oil filter. During checkout you'll be given the option between Motul Specific 502.00, 505.00 & 505.01 5W40 or Motul Power 300V engine oil as well as Motul Inugel Optimal Ultra Coolant and an OEM oil filter. The Premium Motul lubricant package is included at a much lower than retail price point and the costs are listed below.
| Description | Part Number | Price |
|---|---|---|
| 5 Liters of Motul Specific 505.01, 502.00 & 505.00 SAE 5w40 Oil, Oil Filter & 4 Liters of Inugel Optimal Ultra (Concentrated) - Organic | MO00002 | $70.00 |
| 6 Liters of Motul 300V Power 5W40, Oil Filter & 4 Liters of Inugel Optimal Ultra (Concentrated) - Organic | MO00006 | $100.00 |
How to Purchase
APR provides two easy and painless methods to purchase your ECU Upgrade. You may visit any APR Dealer for local installation while you wait or you can remove your ECU and send it directly to APR Headquarters for installation. Typically your ECU is returned the same day we receive it. For ECU removal instructions see our Customer Support page.
If you're sending your ECU in to us, please print out and complete the order form below. Be sure to indicate which programs you would like to purchase, as well as the other information requested. For information on the program options, see above under the EMCS heading.

