APR Tuning Products for the Audi 8P - A3

APR's A3 Exhaust is a stainless steel, 3.0" mandrel bent, turbo-back exhaust. Unlike most other aftermarket exhausts, the APR exhaust is a full exhaust from the turbocharger back. This exhaust is very quiet and simply changes the tone of the exhaust to a deep, unobtrusive sound. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market. All APR exhausts come with a full lifetime warranty.

On the A3, the stock exhuast is almost 2.5" and flows very well even on a chipped car. Simply adding an exhaust to a stock or chipped 2.0T does not make a very big gain over the stock setup. Unlike the 1.8T, because of the new engine management (ME9) and FSI, there are substantial gains that can be seen by making a software change after adding the exhaust.

With APR exhaust-specific software, peak gains of 18hp and 20lb-ft can be seen. At some RPM's, these gains are as high as 22hp and 25lb-ft. APR exhaust-specific software is available for free for all APR ECU Upgrade customers.

APR is in the process of forming a complete line of exhaust upgrades for all variations of the A3. Whether for street or track use we will have the right application for you.

While modifying the 2.0T FSI engine beyond factory power levels, it became quickly apparent that an additional volume of high-pressure fuel was needed to make horsepower, especially in the midrange (3000-5000rpm) of the powerband. To understand why this fuel is needed for the midrange, one must first understand how the fuel delivery system works in the 2.0T.

A low pressure fuel pump (which varies from ~40-95psi) delivers fuel from the gas tank to the engine. Then, in order to spray fuel directly into the combustion chamber, a high-pressure, camshaft-driven pump pressurizes the fuel to upwards of 130bar (almost 1900psi !). Unfortunately, on cars that have many modifications the stock fuel pump cannot flow enough volume of fuel to maintain the system pressure, and the car gets the familiar “fuel cut” that so many modified customers experience.

The limitation of how much volume of fuel the high pressure pump can flow is dependant upon the volume displaced by the pressurizing cylinder inside the pump and the number of times the piston reciprocates inside that cylinder. Since the high pressure pump is driven off of the engine camshaft by a three lobe cam, the piston of the pump cycles at 1.5 times the engine rpm. (Engine camshaft turns at one-half engine rpm multiplied by three for the number of lobes on the high pressure cam lobe).

Because of this dependency on engine rpm for the high pressure fuel pump output volume, the FSI pump is capable of flowing almost 370hp at 7000 rpm, but yet only 158hp at 3000rpm. The graph below illustrates the maximum horsepower potential of the stock fuel pump compared to the APR FSI fuel pump. Also on the graph are stock and APR Stage III horsepower numbers. Clearly, the stock pump is insufficient for the output generated by this upgraded kit. The only way to address this issue while maintaining a pump that fits in the stock location is to change the volume of the pump’s internal pressurization chamber.

APR has designed the best intercooler upgrade for your 2.0T FSI engine as found in the Audi A3 and TT. Charge air cooling is essential to maintaining powerful and safe operation of a turbocharged engine and as performance is increased, so must the efficiency of the intercooler. The APR FSI Intercooler is a perfect OEM intercooler replacement with an intercooler core size almost three times the size of the original unit.

* Cast Aluminum End Tanks
* Bar and Plate Core Design
* Silicone Pressure Hoses
* Direct OEM Fitment - NO Trimming Necessary
* Fits ANY Stock or Aftermarket Bumper Cover
* Adaptor Coupler for Stock Plumbing

APR’s Intercooler Kit for the transversely mounted 2.0T FSI was designed with maximum performance and minimal intrusion in mind. APR’s unique ability to design and cast intricate aluminum end tanks allows us to make an intercooler that fits in the same location as stock, but with a much larger core size.

When moving this air to and from the intercooler, you want to do so with the least amount of resistance as possible. With this in mind, plumbing was designed for the intercooler. Silicone tubing was used to create seamless internal geometry for the air to flow through while also allowing smooth transitions between diameters. A unique CNC-machined coupler allows the silicone APR hoses to connect to the rest of the stock inlet plumbing.

Overall APR’s FMIC kit is the absolute best kit you will find on the market today. We work hard to design, engineer, and test products that will last long and perform well for years to come and this product is no exception.

Several tests were done in order to prove the differences between the stock intercooler and the APR one. One test for thermal effectiveness involved placing the car on the dyno with our normal assortment and arrangement of cooling fans. The car was then run through a rigorous testing procedure that involved allowing it to idle to a normal operating temperature, and then running it through five power runs.

Our all aluminum end-tanks are factory like cast pieces. A cast piece ensures consistency in the production process, which in turn guarantees proper fitment to the core. Once mated and welded to the core, all assemblies are pressure tested to 60psi. This intricate end tank design allows the APR intercooler to fit in the factory location with the stock air conditioning condensor and radiator bolted to it. No sheet metal endtanks here... You won’t find this attention to detail in any other offering.

There are two primary core designs commonly used for cooling: the bar and plate design and the extruded tube. While both offer similar performance, a bar and plate intercooler is more efficent for cooling the intake charge temparature.

The size of the core is also very important. The APR intercooler for the Transverse 2.0T FSI is a massive 16.25" tall, 2.25" thick, and 23.2" wide. From a standard chipped car to a Stage III, this core is extremely efficient and does an outstanding job in reducing intake temps.

The tooling for the silicon hoses is drawn up on Pro-Engineer and manufactured in house for precise fitment. Incorporated into the design is a recessed end, which allows the pipe to lie flush inside the hose, eliminating protruding edges that inhibit airflow.

The APR intercooler includes a specially designed and CNC-machined annodized aluminum coupler that allows the APR silicone intercooler hoses to connect to the original equipment connections just like the factory rubber lines. This design allows a quick-disconnects while maintaining a solid, leak-free connection.

In typical APR fashion, our first turbo kit for the new 2.0T FSI engine provides a perfect balance of refinement and power. Making 300hp and 323 lb/ft, APR’s K04 turbo upgrade for the A3 2.0T will enhance your driving experience without compromise. With smooth acceleration and flawless drivability, the APR K04 turbo upgrade will exceed all the demands of a daily driver while providing instant acceleration and an appreciably broader power band throughout the entire rpm range.

From the efficient and reliable KKK turbocharger and manifold assembly to the expertly re-calibrated engine management, APR’s K04 Turbo Upgrade offers performance and drivability that are perfect for the daily commute and week-end track event. Included as well, all the necessary hardware is OEM and helps maintain the stealthy fit and finish.

By incorporating OEM supplied components, we are able to ensure installation and service for your new transverse application will be as smooth as possible. Providing a direct replacement fit, the APR modified turbocharger and manifold assembly will mount in the exact location as your existing turbocharger and manifold assembly. This allows the use of all other OEM mounting locations for such items as the exhaust and compressor inlet hose, making for a completely stealth installation. For best results, APR highly recommends using this kit with our Carbonio A3 Intake and APR Full Exhaust system.

Show your APR pride with our APR Tuned badges. Our badges have a polished chrome finish to keep a factory-like look over the years. The badge is approximately 2 3/4" long and 1 1/2" tall, and nicely replaces the stock engine designation badge on the back of the car.

APR is proud to be the Authorized Distributor for Carbonio Cold Air Intake (CAI) systems. Manufactured from aerospace grade carbon fiber, Carbonio further improves this material by incorporating a proprietary thermal barrier layer in its construction. The result is an exceptionally light and strong part that minimizes intake temperatures. This ensures that the engine optimizes power by receiving the coldest and most oxygen rich air possible.

Carbonio’s line of intakes for Audi automobiles represent the pinnacle of induction design. Extensive testing has resulted in an intake that maximizes performance in all driving conditions. Power will come on sooner and the engine will pull for longer and stronger.

Benefits of the Carbonio CAI System include:

* Increases Horsepower and Torque
* Improves Throttle Response
* Decreases Turbo 'Lag'
* Flattens Torque Curve (engine is less 'peaky')
* Improves Fuel Economy
* Enhances Engine's Volumetric Efficiency
* Enhances Sound of Turbo Diverter Valve
* Works with All Aftermarket Diverter Valves
* Installs in an Hour (does not require bumper or headlight removal)
* Maintains Clean Appearance by Retaining Factory Engine Cover
* Maintains All Factory Emissions Components
* Fits Both Manual and Automatic Transmissions
* Unique Thermal Barrier Composite Construction Ensures Low Inlet Temperatures
* Fully Compatible and Complimentary with APR Software and Exhaust systems

Each Carbonio A3 Kit Includes:

* Aerospace Grade Carbon Fiber Main Section Ensures Inlet Temparatures Stay Low
* Carbon Fiber Main Section has Show Quality Finish
* Complete Photographic Instructions
* All Necessary Hardware Included for Easy Install without Cutting Or Modifying