APR 1.8 TSI S3/Golf R K04 Conversion System
APR's Transverse 1.8 TSI Audi S3 and VW Golf R Engine Conversion Packages will upgrade your current factory rated 158hp and 180lb-ft Transverse 1.8 TSI Engine with all of the necessary OEM components from the European Audi S3 and VW Golf R and meticulously recalibrated Engine Management to produce 330 horsepower and 335lb-ft of torque on 98 RON gas.
Reliability, drivability, stealth 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 a broad torque curve 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.
APR Modified K04 Compressor Cover
The Borg Warner K04 turbocharger selected by VAG engineers is perfectly sized for the 1.8 liters of displacement to allow for stout horsepower numbers as the RPMs increase with no dramatic fall off as redline approaches. This ensures plenty of power in the high RPMs for continued acceleration in the straights and positioning at the healthiest portion of the power band after corner exit.
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. 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 K04 turbocharger was originally designed for an FSI engine, and as such, some items not required for the new TSI engine are present. The compressor cover features a port used in the FSI's PCV system, however on the TSI, this same port is located higher up on the intake tubing. APR has provided a gasket sealed laser cut port cover to block off this part and ensure no unmetered air leaks into the system. The design is clean and simple and never requires maintenance.
Optional OEM Exhaust Compatibility
While an APR RSC Performance Exhaust System and APR high flow exhaust software is recommended for maximum power, if you're in a situation where running a high flow exhaust is not permissible APR has developed software specifically for use with your OEM exhaust system. You may switch between high flow exhaust software and OEM exhaust software free of charge at any time.
APR's Patented EMCS Technology
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 Programs listed below. You will also be able to add APR Security Lockout, APR Fault Code Erase and APR Anti-Theft features.
|Program Mode*||Peak HP||Peak TQ||Largest HP Gain Over Stock||Largest TQ Gain Over Stock||Speed Limit|
|*It is essential to ensure your vehicle is filled with at least the minimum octane rating for each Performance Calibration when activating the program.|
|¹Figures measured using APR Carbonio intake and APR Downpipe Exhaust System.|
|Stock - As reported by VW/Audi||158 HP||180 LB-FT||-||-||127 MPH|
|Stock - As measured by APR||186 HP||206 LB-FT||-||-||127 MPH|
|APR 95 RON||Unmeasured||Unmeasured||Unmeasured||Unmeasured||Unlimited|
|APR 98 RON¹||330 HP||335 LB-FT||151 HP @ 6100 RPM||140 LB-FT @ 5600 RPM||Unlimited|
|APR 100 RON||Unmeasured||Unmeasured||Unmeasured||Unmeasured||Unlimited|
|APR 104 RON||Unmeasured||Unmeasured||Unmeasured||Unmeasured||Unlimited|
|APR Valet||Limited Output||Limited Output||Limited Output||Limited Output||70 MPH|
APR provides all hardware and software needed to ensure a complete install. All items which can be preassembled on the turbocharger come preassembled by APR. The APR K04 turbocharger system consisting of the following:
- APR EMCS Software
- APR Modified OEM K04 Turbocharger with Billet Compressor Wheel, Stainless Steel Exhaust Manifold, N75 Solenoid and Wastegate Actuator
- APR CNC Turbo Outlet Flange
- APR Turbo to Turbo Outlet Flange O-Ring
- APR Turbo to Turbo Outlet Screws (3x)
- APR Turbo Outlet Silicon Hoses
- APR Turbo Outlet Hose Clamps (2x)
- APR CNC Compressor Cover DV Mounting Flange
- APR Turbo to DV Mounting Flange O-Rings (2x)
- APR Turbo to DV Mounting Flange Screws (3x)
- OEM DV Mounting Screws (3x)
- OEM DV Mounting Screw Lock Washers (3x)
- APR Laser Cut PCV Port Cover
- APR PCV Port Cover Gasket
- OEM PCV Port Cover Screws (2x)
- OEM PCV Port Cover Screw Lock Washers (2x)
- OEM Turbo Manifold Gasket
- OEM Turbo Manifold Nuts (4x)
- OEM Downpipe Studs (4x)
- OEM Downpipe Nuts (4x)
- OEM Downpipe Gasket
- OEM EVAP Line One Time Use Hose Clamps (3x)
- OEM Oil Return Line Gasket (2x)
- OEM Oil Feed Line Washers (2x)
- OEM Coolant Feed Line Washers (2x)
- OEM Coolant Return Line Washers (2x)
Stealthy OEM Appearance
APR's S3 K04 Turbocharger Conversion System is constructed from OEM parts and appears OEM. It's easy to install and 100% reversible. Every OEM part is fully Plug and Play:
- Exhaust (Upgrade Highly Recommended)
- Intercooler (Upgrade Highly Recommended)
- Intake (Upgrade Highly Recommended)
- Diverter Valve
- Positive Crankcase Ventilation Lines
- EVAP Lines
- Coolant Lines
- Oil Lines
- Turbo Support Brace
APR K04 Compressor Cover vs
OEM K04 Compressor Cover
NOTE Do not be fooled by claims from lesser tuners, a transmission reflash IS NOT Required to achieve the advertised power claims with an APR ECU Upgrade.
Installation can be performed at APR Dealers and all parts necessary for the installation except for fluids are included. For best results APR highly recommends the APR RSC Turboback Exhaust System, APR Carbonio Intake System and APR Intercooler System.
|*Transmission upgrades are highly recommended with this upgrade.|
|Audi A3 8P||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Audi TT MKII||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Golf MKVI||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Magatron||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Passat B6||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Passat B7||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Passat CC||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|VW Sagitar||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Seat Altea||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Seat Leon 1P||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Seat Toledo MKIII||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Skoda Octavia II||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Skoda Superb II||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Skoda Yeti||1.8 TSI||All||All||T2100010||Contact Your APR Importer|
|Existing APR Software Customers||1.8 TSI||Contact Your APR Importer|
|New APR Software Customers||1.8 TSI||Contact Your APR Importer|
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.
|Error Loading Motul Pricing Information. Please Call|
All APR ECU Upgrades installed via Directport Programming are eligible for a 6 hour free trial. This means you can experience the performance of the APR ECU Upgrade for your vehicle at no cost to you for 6 hours of driving time! To receive a free trial, please inquire with your APR Dealer of choice.
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.
Security, Warranty and Money Back Guarantee
All APR ECU Upgrades are fully encrypted to prevent theft of our valuable and proprietary coding information by lesser companies.
All APR ECU Upgrades include a limited lifetime warranty against defects in the software and to provide free updates and reflashes as they become available. Installation may be additional and is not included in the warranty.
All APR ECU Upgrades offer a 30 day money back guarantee with no questions asked. If for any reason you are unhappy with your APR ECU Upgrade you may return the upgrade to your place of purchase for a full refund provided you are within a 30 day period from your time of initial purchase. Installation is not included in the guarantee and is at the discretion of the place of install.