Stage 1+ Remote Tuning: Audi S4: B5 (2.7T)
Model Years: 1999-2001 *Please contact us with questions about model years
Injectors (recommend Bosch 550cc)
Upgraded Diverter Valves
344hp / 395lb-ft
*All numbers produced using 93 octane and subject to vehicle’s condition.
This tune is intended for stock K03 turbos.
Remote Tuning Kit Includes:
- Selected ECU Software Upgrade
- Up to 3 Log Reviews
- Motoza MX-USB Interface
- MotozaPS for the PC
- Free Motoza Member account, which lets you store, upload, and download data logs and tuning files online.
Unless prior arrangements are made, log reviews must be used within 6 months of initial set up. Hardware changes made after initial set up may incur a fee.
- Flashed DIRECTLY to the ECU with remote tuning kit (included FREE)
- Flash your tune in your own garage, no need for a dealer
- Extensively tested and proven to provide superior performance
- Increased power and torque
- Optimized for responsiveness, drivability and smooth operation
- Rev-limiter raised
- Speed restrictions removed
- Easily upgrade your tune at a later time
- Upgrade to MTC (Multi-Tune Control) available
Supported Hardware for Stage 1+
Injectors must come from a reputable source. Bosch 550cc (0 280 158 117) is our preferred injector, it can be used with E85 and gives you room to upgrade. If you have injectors larger than 550cc, please email us and let us know what you have. We can typically accommodate them, but there is an upcharge depending on size and manufacturer. If you purchase 750cc and larger injectors through Motoza, the upcharge for injectors over 550cc on a Stage 1+ will be waived.
Bosch Green Giant 440s are also options for pump gas. Please see the Injector Policy section below.
If you have a turbo larger than a K03S, please see our Hybrid K04 or Big Turbo options.
Intended for the stock MAF. 85mm MAFs can be supported for an additional charge.
Diverter valve can be piston style, full recirculating or hybrid, but no BOVs. The Bosch 710N diverter valve is another good choice for Stage 1 and 1+.
No limitations on intercoolers, intakes, exhausts, or fuel pumps. For upgraded intakes, please use a dry filter. If using an oiled filter, regular MAF cleaning will be needed. *Any exhaust may be used but additional track car verification may be required for full support of some exhaust types.
Built blocks and 2.8 cams are supported. More aggressive cams, upgraded throttle bodies, and MAFs larger than 85mm are not included at this price level, but we are happy to provide a quote.
Injectors are the heart of your build. They need to be genuine Bosch or properly modified with a detailed flow report. Injectors must come from a reputable source, there are too many counterfeit and subpar rebuilds that do not flow as advertised, may damage your engine, they waste time and money and we will not support them. This site is, of course, a reputable source, but there are others and we will gladly share that list via email. It even includes other tuning companies; we’d rather you buy genuine injectors from another tuner than purchase cheap, ineffective, or knock-off injectors. Injectors purchased on auction and third party sites that ship in boxes with smiles on them are not worth your money & time. In short, if you are looking for places to save money on your project, injectors are not the place to do it.
We expect that cars will fuel differently based on age and condition, however, all of the injectors supported by the Stage 1+ have a normal range of variance. If your injectors are not within this range you may be required to replace them or flow test them at your expense.
What You’ll Need
A Windows 8, 10, or 11 laptop with a USB-A port. Chrome OS and MacOS are not supported, but software requirements are minimal; if your computer meets the minimum requirements for your version of Windows you’re good to go.
You’ll need an internet connection to download and upload files but not for flashing and logging.
More than just an off the shelf file, our logging process allows your tune to be optimized for your car and your modifications. You’ll work with real people who value you and your car. Our tuners can often spot common mechanical issues that prevent you from getting the most out of your build and are happy to assist you as your car progresses. For a decade our commitment to personalized service and the mechanical engineering backgrounds of our staff sets us apart. Whether you’re new to modification or have modded every vehicle you’ve owned, we’re here to support your power goals.
While we do insist on quality injectors and OEM or OE sensors from trusted suppliers, we support most aftermarket parts giving you the flexibility to choose the hardware that’s right for you. Our power numbers represent an average based on third party testing, not ideal conditions on our own dyno. Well maintained cars can outperform estimates. Let’s face it, 15+ year old cars need a little special attention to perform their best and while you may be good to go on the first file you’ll have the peace of mind knowing that our staff is there to ensure that your car is responding well to increased power levels and then further dial it in to ensure maximum performance.
With no additional fees for flashing hardware you’ll have the ability to tune your car from the comfort of home or you can work with one of our trusted dealers but still have support when your car leaves the shop. We offer affordable reworks if you need to add new hardware but are not ready to change stages and additional log reviews can be purchased outside the tuning window if you need diagnostic assistance.
Motoza Performance products are intended for motorsports competition on closed courses where permissible. Purchase constitutes acceptance of the terms and conditions. Products are not for sale or use in the state of California or other jurisdictions where sale or use is prohibited. Unless specifically noted, products are not intended for use on registered or emissions controlled vehicles. By checking out, you understand and agree that use on public roads in the United States is illegal. Motoza Performance, its parent companies and/or subsidiaries make no claim, representation, or warranty that products comply with, or are designed to comply with, any emission standard. Purchaser acknowledges and agrees that it is their sole responsibility to inform themselves of applicable laws governing the use of automotive performance products for their application and circumstances. Additional digital signatures and verification may be required for some products and services.