K04-015 MTC Tuning Kit for Audi B5 A4 (Over $100 off if you bundle)!


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SKU: E85_kit-B5A4-K04-015 Categories: , , ,


The ultimate K04-015 turbo setup.

Almost everything you need to run E85 on a BorgWarner K04-015 setup! Our meticulously engineered K04-015 tune is one of the most effective upgrades available.
This tune is specifically designed to get the most out of a K04-015 on a stock block and fuel pump. Our E85 tuning kit has everything you need to be race-ready for less than buying each item individually.

Multi-Tune is automatically included in this package. User Adjustable Launch Control can be included for dedicated track vehicles with a manual transmission vehicles and straight pipe. Rolling Anti-Lag is only available for MY2001 competition vehicles and also requires a manual transmission and straight pipe. No Lift Shift can be included on request if User Adjustable Launch Control or Rolling Anti-Lag is selected. Pedal overlap is available on request at no additional charge and is compatible with all transmission types and exhausts with the purchase of this kit.

This tune can be set up for any four fuel types on wideband ECUs and two on narrowband. If E85 is not available near you, feel free to take advantage of the savings this kit offers and select “custom” for your MTC option. Multi-Tune can be set up for any octane or RON rating*, E85 or lower percentage blends of ethanol, water methanol, econ (stock boost/timing levels), a “dead map,” or varying boost levels.
*While we don’t suggest running anything lower than 91 Octane/95 RON for best performance as suggested by Audi, we can accommodate customers in countries without access to 91.

This tune package can accommodate upgraded rods and can be used with the stock MAF, stock MAF sensor with TT225/VR6 housing or a complete TT225 or VR6 MAF. This tune is not intended for Hybrid K04 builds, heavily modified blocks, cams, blow through MAFs, custom MAF housings or housings other than TT225/VR6, or 3 bar MAP sensors. Click here for Hybrid K04 tuning.

Most MY2000 B5 A4’s in North America have a narrowband ECU and O2 sensor. For narrowband vehicles, MTC can accommodate two maps rather than four due to the size of the ECU. Please contact us with your ECU part number if you need confirmation on your ECU type. For B5 A4 owners outside the US, we suggest emailing us with your engine code and ECU part number before ordering and confirming that your vehicle is using a port flashable ME7 ECU and electronic throttle.

Required Hardware (Not Included)
Upgraded diverter valve: 710N or piston style DV
Suggested Hardware
Upgraded Intercooler
K04-015 93 Octane
~260hp / ~300 lb-ft
K04-015 E85
With Rods ~310hp / ~360lb-ft
Stock Block ~270+hp /~348 lb-ft

*All power gains subject to vehicle condition, fuel quality, and ambient conditions.

More Powerful.

Cooler burning fuel with higher octane means race performance at pump prices.

More Precise.

The right tune for the right fuel at the touch of a button with MTC (Multi Tune Control). Select up to four fuel maps based on your preference. No more compromising with “flex” fueling. Now, each tune is calibrated independently to ensure unyielding performance.

More Sustainable.

Homegrown, sustainable fuels keep the future in mind.


Kit Includes:

OEM K04-015 Remote Tune
Motoza Remote Tuning USB to OBD-II Cable
Setup + 5 Log Reviews
Motoza MTC©
(4) BOSCH 550cc Injectors
(4) EV1 to EV6 Adapters
Pedal Overlap – FREE on request
Launch Control & No Lift Shift (for manual transmissions)
Rolling Anti-Lag is available at a reduced rate for MY2001

Tune, MTC, and Launch Control are virtual products that will be uploaded to your account. Box images are representational only. Your tuning cable and hardware will be shipped.

Launch Control, NLS, and Rolling Anti-Lag are for Competition Use ONLY vehicles. Competition Use Only Vehicles are not registered, cannot be driven on public roads and do not have a VIN.

Additional information

Weight .6 lbs
Dimensions 10 × 8 × 6 in
Off-Road Use ONLY

Products on this site are off-road use only and may require a signed form prior to shipping stating that you understand and agree to these terms. Additional proof that the vehicle is unable to be used on public roads may be required. Currently all California customers must sign this form.

Federal Law States:

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

The purchaser acknowledges on check-out and prior to shipping that Motoza Performance products may not be used on public roads and are sold for racing applications. The purchaser certifies that their intended use is for racing and/or off-road applications and that Motoza Performance products will not be misused.

Purchaser agrees to indemnify Motoza Performance, its parent companies, all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and acknowledges that they have been advised that driving a modified vehicle on public streets or highways could result in criminal or civil penalties.

California Customers

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm