APR Tuning Products for the Audi B7 - S4
The Audi B7 platform S4 is the most recent version of the vehicle currently on sale, based on the B7 Audi A4, having debuted in late 2005. Although Audi classifies it as a new car, the differences between it and the outgoing B6 S4 are primarily cosmetic. It has the same engine 4.2 L V8 as the previous generation, producing 344 PS (253 kW) at 7000 rpm.
There are a few mechanical changes, such as revised springs and dampers and, for model years 2008 and later, an updated center differential featuring a 40:60 torque split on manual transmission models. The new "corporate" single-frame grill, narrow bi-xenon headlamps with curve illumination, "L" tail-lamps and quad exhaust tips help distinquish the B7 from the previous B6 model.
APR's sole mission is to engineer only the highest quality tuning solutions for Audi vehicles, ensuring the enthusiast the ultimate driving experience, while consistently providing the enthusiast the ultimate in customer care and support.
Because we are the best at what we do. There are several reasons to GO APR over other companies. First, we are the only VW aftermarket design firm in the US with engineers on staff. Second, we only tune VAG + Porsche vehicles. Third, we have completely reverse-engineered the entire Bosch Motronic system. We can safely say that we probably know the system better than anyone in the world (except Bosch, of course). Finally, we always strive to provide the best customer service and support possible.
| APR ECU Chip for the Audi B7 - S4 | click to show details [+] |
The ultimate chip upgrade for the S4 4.2 engine is available from APR. After months of long nights and many hours of dyno work we are pleased to offer you chip tuning that is second to none. We have worked hand in hand with many customers to deliver a chip that works. Expect increases in throttle response and a smoother, more powerful top end.
APR chips are available in an octane specific version for the octane of gasoline that you typically run in your car. The power that the chip makes also depends on which ECU is in your vehicle. The S4 4.2 ECU can be upgraded with either the use of a soldered in EMCS module, or DirectPort Programming. For more information on DirectPort Programming, please see the DirectPort page. For more information on the ECU upgrade, please see the charts below
All APR chip upgrades use encryption, which serve several purposes. Mainly, it keeps prying eyes out of our software and prevents lesser companies from copying the chip and degrading the product. Also, all APR software is undetectable to a dealers VAG diagnostic tool.
All APR chip software comes with lifetime free upgrades. There is also a lifetime warranty against defects in the software or soldering. All chip upgrades have a 30-day Money Back Guarantee.
| Year | Engine | Stock HP | Stock Torque | 91 Octane HP |
91 Octane Torque |
93 Octane HP |
93 Octane Torque |
100 Octane HP |
100 Octane Torque |
104 Octane HP |
104 Octane Torque |
Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 340 HP | 302 ft/lbs |
352 +12 HP |
312 +10 ft/lbs |
$599.00 |
* Due to many variations, ALWAYS refer to the ECU part number in your car.
** Speed and Rev Limt changes only.
*** For a limited time only, this software includes ALL EMCS programs and options.
These options include:
-Stock Program
-91 Chipped Program
-93 Chipped Program
-Valet Program
-Fault Code Erase
-Throttle Body Alignment
-Security Feature
-APR AntiTheft
EMCS
EMCS is available for this car. EMCS is APR's revolutionary patent pending Enhanced Modular Chipping System. EMCS is an industry leading technology that brings many new features to the automotive enthusiast. This technology was developed exclusively by Audi Performance & Racing, LLC and demonstrates APR's continued commitment to lead the industry with the most technologically advanced products available.
Want chipped mode? Want to be able to switch back to your stock settings? Want a race mode to run 100 octane fuel at the track? How about a valet mode that limits power? EMCS is the lone technology on the market that can give you all of these options. No changing of the chip or ECU is required. These programs are available at the touch of a button.
APR has taken your cruise control buttons and utilized them for this function. Your cruise control will continue to function as normal, but will give you the ability to scroll through the programs you have purchased on your APR chipped ECU. The procedure is simple and involves only two steps.
Step 1: Press and hold the "set" button on your cruise control. After approximately five seconds, the "check engine" light on your dash will begin to blink once per second. This will tell you that you are activating program one. This blinking sequence will continue for approximately five seconds.
After this five second interval, the "check engine" light will begin blinking twice per second. This will indicate that you have activated the second program. This process is continued to access any remaining programs you may have purchased. (three blinks = program three, four blinks = program four).
Step 2: Once you have activated the desired program, simply release the "set" button. The "check engine" light will go off, and you will be locked in that program until you change it.
It's that simple.
APR's EMCS is a truly modular system that allows for future enhancements and features to be added as they are developed without the need for additional hardware. EMCS makes the following advanced features possible:
EMCS Circuit Board and
- Programmer End
- EMCS Home Programmer
- EMCS System
FlipSwitch
Enables you to swap between two or more engine programs on-the-fly using the cruise control stalk. All cars have stock and standard chipped program versions available. Valet, race-gas, and other specialty programs are available for some models.
Fault Code Erase/Throttle Body Alignment (FCE/TBA)
Fault Code Erase allows you to erase and reset engine related trouble codes without having to use a specialty tool. Throttle Body Alignment allows you to manually perform throttle-body adaptation.
Security Lockout
Prevents unauthorized personnel from accessing EMCS functions. The user may select any 1 to 4 digit security code. The security code is entered using the cruise control buttons.
User Reprogramming and Reconfiguration
Gives the user the ability to reprogram their ECU with the latest software updates and to reconfigure their ECU for different preferences or features. This function requires the optional programming adaptor.
| APR Engine Snub Mount | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
 APR's Snub Mount Upgrade replaces the front engine mount on the car. This mount enhances upshifting and downshifting, reduces driveline shock, and helps power transfer by taking up excess drivetrain slack. |
| Print the Audi B7 - S4 - APR Engine Snub Mount | click to hide [-] |
| APR Exhaust Packages | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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APR's B7 S4 Exhaust is offered as both a full or as a catback system. The catback system is a complete stainless steel, mandrel bent, cat-back exhaust. The exhaust is a dual 2.25" system that begins at the factory downpipes and continues to an innovative center muffler. The exhaust then splits and each mandrel bent pipes goes to its own muffler with dual 3" (75mm) tips for the B7 S4. 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. |
| Print the Audi B7 - S4 - APR Exhaust Packages | click to hide [-] |
| Stoptech Big Brake Kits | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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| Print the Audi B7 - S4 - Stoptech Big Brake Kits | click to hide [-] |
| Carbonio Intakes | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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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
Each Carbonio S4 Kit Includes: * Aerospace Grade Carbon Fiber Main Section Ensures Inlet Temparatures Stay Low
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| Print the Audi B7 - S4 - Carbonio Intakes | click to hide [-] |
| APR Downpipes | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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This system replaces the 4-cat factory setup with a pair of metal matrix catalysts. APR downpipes will only fit with an APR catback system. In testing, a full APR exhaust produces gains of 25hp and 35lb-ft across most of the engine powerband. Throttle response is also greatly improved. |
| Print the Audi B7 - S4 - APR Downpipes | click to hide [-] |
| APR Tuned Badge | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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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. |
| Print the Audi B7 - S4 - APR Tuned Badge | click to hide [-] |
