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. 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. 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 Purchase 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.

The APR Low Pressure Fuel Pump (LPFP) Upgrade is designed to ensure the low pressure fueling system is capable of delivering the proper volume of fuel from the fuel tank to the high pressure fueling system under high demand situations. Challenges to upgrading the LPFP: - Very little room for upgraded pump - OEM Pump requires a PWM signal - OEM pump controller overheats with high output pumps - Upgraded OEM pump controller not fully compatible - ECU modifications may be required - Secondary controllers often rely on physical boost signals The factory LPFP sits in a basket submerged in the vehicle's gas tank. The pump operates off of a pulse-width modulated (PWM) signal sent from the pump's control module, which is mapped in the ECU. As fueling demand increases and decrease, the PWM signal adjusts to send only the required amount of fuel through the pump. Unfortunately upgrading the LPFP is not a simple drop in task. The pump's factory enclosure presents some packaging constraints limiting clean expansion to a larger unit. Likewise, doing so often results in overheating and subsequent protective shut down of the factory control unit as it's operating outside of its intended design. This is even true when installing larger and expensive factory units like those found on high output vehicles, such as the Audi TT RS and RS3. Furthermore, upgrading the LPFP control module with the matching expensive higher output control units present other issues as the controller receives CAN messages from integrated vehicle componentry not common on vehicles requiring an upgraded LPFP. The APR Solution: - Inline fuel pump - Fuel pump controller with proper ECU CAN bus communication - Clean mounting brackets included - Direct bolt on with no software required - APR took a multi-step approach to solving the low pressure fueling system and is pleased to present a clean and accurately controlled solution for high horsepower applications. The APR LPFP System features a 255 LPH high-pressure inline fuel pump that sits between the HPFP and the factory LPFP. The included APR Auxiliary ECU sits on the factory CAN bus and receives critical operating information from the factory ECU to accurately control the pump. As fueling demands increase and decrease, the APR Auxiliary ECU controls output of the pump to deliver the desired volume of fuel to the HPFP. By connecting to the factory CAN bus, the APR Auxiliary ECU eliminate the need for less sophisticated and often problematic methods of controlling the upgraded pump. Because the pump only runs when needed, less power is consumed, fuel temperature is lower and noise, especially at idle, is essentially non-existent. Finally, with the fuel line disconnected, with the click of a button the APR Auxiliary ECU allows the user to quickly and easily empty the vehicle's fuel tank to make way for switching to higher octane fuels or for dry storage and transportation.