Big Turbo Remote Tuning: Audi A4: B6 (1.8T)
Starts at $789.00. Please complete a Big Turbo Quote Request Form
Model Years: 2002-2005 *Please contact us with questions about model years.
Talk to us about your power goals, your modifications, and we’ll help you get there.
Injectors (Bosch 550cc minimum)
Upgraded Diverter Valve
Upgraded Fuel Pump
3″ or larger MAF Housing
300-600hp / 300-600lb-ft
Power gains will vary based on modifications, fuel type, and testing conditions.
- Model years may shift for some European and ROW markets.
- Injectors MUST come from a reputable source. See below for more information.
- For customers planning to run E85, we suggest at least 750cc injectors and upgraded rods.
- Please feel free to contact support if you have questions prior to submitting a quote request. There’s a lot of info here.
Remote Tuning Kit Includes:
- Selected ECU Software Upgrade
- 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 C6ontrol) available
From GTRS eliminator kits to complex builds, we support just about any turbo.
Injectors must come from a reputable source. Injectors larger than 1000cc are supported, but must come from one of three modifiers. May include 3bar MAP sensor, larger MAF housings, blow through MAFs, ProMAF. Rods and/or upgraded valvetrains may be required depending on power goals. Big port head supported and suggested for higher horsepower goals. Cams, displacement/compression changes, upgraded or aftermarket throttle bodies are supported. Water methanol and ethanol supported. 3bar MAP pressure requires rods. E85 use with most turbos requires rods.
The narrowband ECU found on the 2000 A4 in North America has some limitations. The ECU lacks the resolution to handle injectors larger than 550cc well, effectively limiting you to a GT28 series turbo. Wideband conversion is possible and the real time fuel correction provided by a wideband primary O2 sensor is much safer for your investment. We offer wideband conversion kits if needed. Upgraded MAP sensors are not supported on narrowband vehicles.
After submitting a quote, we’ll be in touch with pricing and/or suggestions.
What You’ll Need
A Windows 7, 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.