APR Tuning Products for the Audi C5 - A6
In 1997 the scene changed strikingly for the A6. With the introduction of an ambitious new design (C5) and a new pack of engines, the A6 moved up a notch and was positioned alongside the hegemonic BMW 5-Series and the solid Mercedes E-Class. The Italian redesigned body presented a very modern design with a dramatic fastback styling that set the trend for the Audi lineup and gave the relatively large sedan a very aerodynamic shell with a low coefficient of drag of 0.28. In 2000 and 2001, the fifth-generation A6 was on Car and Driver magazine's Ten Best list. This new A6 presented itself with a wide range of engines and configurations. The crisp 30-valve 2.4 and 2.8 V6 engines represented the bulk of the A6's development programme, with a multitude of other engine configurations available throughout the globe. As an alternative to the manual transmission, a 5-speed Tiptronic automatic transmission was also available.
The C5 saloon body arrived in 1997, and the Avant body in 1998 in Europe. In the US, the C4 continued for 1997, with the C5 saloon appearing in 1998, and the C5 Avant appearing in 1999. In Canada, there was no Avant (wagon) available at all in 1998 - Audi dropped the C4 Avant at the end of the 1997 model year, and jumped straight to the C5 Avant in 1999 in conjunction with its release in the US. As a result of complying with FMVSS the North American models were equipped with front and rear bumpers that protruded several inches further than their European counterparts, with modified brackets and bumper suspension assemblies as result and child-seat tethers for occupant safety. In compliance with Canadian law, Canadian models received daytime running lights as standard equipment. North American C5 A6 models received the 2.8 litre, 30-valve V6 engine, the 2.7 litre, bi-turbo V6 (also found in the B5 platform S4), and the 4.2 litre 40-valve V8. The V8 models arrived with significantly altered exterior body panels, with more aggressively flared wheel arches, revised headlamps and grille design (before being introduced in 2002 to all other A6 models), taller and wider wheels (17x8"), larger brakes and quattro® as standard.
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 C5 - A6 | click to show details [+] |
The ultimate chip upgrade for the A6 2.7T 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 huge increases in low-end torque, improved throttle response and a smoother, more powerful top end.
The APR A6 2.7T chip is available in a 1.0 Bar configuration. The chip is designed to operate within the turbochargers' efficiency range. Some 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. Please see the chart below for more information.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000-2004 | 250 HP | 290 ft/lbs |
307 +57 HP |
366 +76 ft/lbs |
318 +68 HP |
382 +92 ft/lbs |
336 +86 HP |
398 +108 ft/lbs |
$599.00 | |||
| 2002+ | 300 HP | 305 ft/lbs |
340 +40 HP |
302 +-3 ft/lbs |
352 +52 HP |
312 +7 ft/lbs |
368 +68 HP |
319 +14 ft/lbs |
$599.00 |
* All 4.2 ECU Upgrades include all the EMCS program options for free.
** Speed and Rev Limt changes only.
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 2.7T Bi-Pipe | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
 The APR BiPipe Kit eliminates any and all reliability issues of the 2.7T throttle body boot. This cast aluminum pieces features recirculation valve ports that are enlarged, which helps in reducing boost spikes during gearshifts and improves turbo response after the shift. The BiPipe bolts to the throttle body and is sealed by an O-ring. This is the first in a long line of products that APR has developed in-house using our SLA technology. |
| Print the Audi C5 - A6 - APR 2.7T Bi-Pipe | click to hide [-] |
| APR Engine Snub Mount | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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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 C5 - A6 - 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 A6 2.7T Exhaust is a stainless steel, mandrel bent, cat-back exhaust. Our exhaust begins after the factory catalytic converters with dual 2.5" pipes, and continues back to the innovative center muffler. From there, it splits to two separate mufflers placed in the factory location. This exhaust really helps to awaken the 2.7T, but keeps the stateliness that it deserves. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market. The 2000 and 2001 A6 2.7T exhaust has a pair of stealthy downturns, just like the factory. The 2002 A6 and allroad 2.7T exhaust has twin 3.5" Tips utilizing the factory valence openings. |
| Print the Audi C5 - A6 - APR Exhaust Packages | click to hide [-] |
| APR R1 Diverter Valve | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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Highlights of the APR R1 Diverter Valve Include: * Diaphragm-Based Valve
The APR R1 diverter valve was designed to be the ultimate solution to the problem of unreliable factory and aftermarket diverter valves and to be the leader in performance. Although most are of good design, factory diverter valves are built in a very conscious manner and the materials and overall life and reliability suffer. For the performance enthusiast, the diverter valve is an important component whose proper operation is paramount to optimal engine operation. Enter the R1: APR�s R1 diverter valve addresses all of the reliability problems of the factory-supplied diverter valves and aftermarket replacements and takes performance to the next level. The R1 is a diaphragm-based valve. A diaphragm is the best option for a diverter valve for several reasons. First off, a diaphragm has negligible friction. Piston-based valves have considerable friction from the piston, o-ring, and bore assembly. The lower friction R1 diaphragm equates to faster response and better overall performance. Secondly, diaphragms do not require the periodic greasing that piston-based valves do. Piston-based valves must be qreased periodically (usually every year or sooner), requiring removing the valve from the car, disassembling and reassembling the valve. The APR R1 was designed to be maintenance free for the life of the product. Thirdly, a diaphragm based valve will never have a stuck piston. Piston-based valves periodically incur stuck pistons (especially if the required maintenance schedules are not followed.) Due to the lack of a piston, the APR R1 solves this problem. The R1 is designed for optimal performance. The main body of the valve is investment cast in an aluminum alloy. By utilizing this casting process in lieu of a more conventional machining process, APR was able to optimize the internal geometry of the valve to provide the ultimate in flow performance. This geometry cannot be created utilizing conventional machining. As such, the APR R1 has much better flow characteristics than other diverter valves. Combined with the low friction diaphragm assembly, this equates to a valve that is truly a performance leader. The materials used in the R1 are standard setting. The diaphragm is created out of high temperature material and incorporates a Nomex fabric reinforcement layer for enhanced durability and a diaphragm that will never tear. The alloy main body is finish machined at APR and receives a multilayer corrosion resistant and cosmetic enhancing finish. All machining and final assembly takes place at APR headquarters in the United States for optimal quality control and consistency. |
| Print the Audi C5 - A6 - APR R1 Diverter Valve | click to hide [-] |
| APR S4 Intercoolers | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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Improved cooling leads to smoother and a more consistent power delivery. The APR intercooler upgrade for the S4 is a combination of RS-4 intercoolers and APR designed and developed peripheral parts. The RS-4 intercoolers provide cooling superior to that of the stock S4 intercoolers. Besides being larger, they offer better build quality utilizing aluminum end tanks that are welded to the radiator cores. However, the highlight of the kit is the APR custom designed silicon hoses. Unrivaled Fit and Finish The hoses included in the kit are true custom hoses. They are not a combination of off-the-shelf or modified parts. Instead, they are specifically designed for optimized flow by minimizing straight sections and maintaining a maximum radius throughout. These are true one-piece silicon hoses made from our own tooling created in house. These hoses, along with the RS-4 cores, insure the most thoroughly developed intercooler upgrade option on the market. You won�t find this level of refinement in any other kit. The Kit The kit consists of two primary parts: one, the intercoolers themselves, and two, the hose kit and associated hardware. The hose kit is made up of two turbo to intercooler hoses, two intercooler to bi-pipe hoses, eight clamps, the horn re-location bracket, and cap screws and lock nuts. This hose kit is available separately. |
| Print the Audi C5 - A6 - APR S4 Intercoolers | 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 C5 - A6 - APR Tuned Badge | 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 C5 - A6 - Stoptech Big Brake Kits | click to hide [-] |
| APR Downpipes | click to show details [+] |
Exhausts and intercoolers are shipped for a $50 flat rate.
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APR's A6 Cat and Downpipe Exhaust replaces the the exhaust from the turbochargers to behind the lower factory catalytic converters. The system removes the factory pre-cats right off of the turbocharger and includes six separate components. Included are the two pipes off of each turbocharger, a set of pipes with catalytic converters, and a set of test pipes without cats. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality downpipe system on the market. |
| Print the Audi C5 - A6 - APR Downpipes | click to hide [-] |
