Select Vehicle From Dropdown

JHM TCU (DSG) and Stage 2 ECU Tuning Bundle for B8 RS5 4.2L FSI (32v)


Availability: In stock


Maximum number of characters: 17

* Required Fields


Introducing JHM Stage 2 ECU and TCU Tuning for the B8-RS5 with the 32v 4.2l FSI V8!!!


NOTE: You MUST have our ECU software to run our TCU software due to the increased shift points and other features that require our ECU software to function correctly.


IMPORTANT: After purchase you must email with your order number to receive your account credentials.


We have specialized in tuning naturally aspirated (NA) or "all motor" 4.2L V8 engines since we started tuning the B6-S4 in 2008. Ever since then we have been the number one company when it comes to Audi V8 performance. Like our success with the B6-B7 S4, B7 RS4, and B8-S5 4.2L has shown, our software has been proven time and time again to deliver real world performance. That continues with our tuning for the B8-RS5 4.2L FSI V8. We purchased our in-house B8-RS5 4.2L in mid-2017 and immediately began developing software. After countless revisions and putting the vehicle through our rigorous R&D process, we are happy to now offer the ultimate performance software for your B8-RS5 4.2L FSI V8!



Why is our tuning the BEST? Our Stage 2 performance ECU and TCU software is specifically designed to work in harmony together maximize the engine power output capabilities.  Following our success with the B7-RS4 and B8-S5 4.2L FSI Performance Software, we began extensive research and testing with our in house B8-RS5 4.2L. Our tuning will give your RS5 improved throttle response and more power throughout the entire RPM range leading to faster acceleration and a much more rewarding and refined driving dynamic.   

By making a ECU and TCU combination that works together we were able to do the following for your RS5:

  • Engine Rev limit increased to 8800rpm
  • More aggressive throttle control in Sport Mode
  • Increased shifting speeds
  • More assertive shifting in Sport mode and after using Launch Control
  • 1-2 short shift issue in factory file fixed and raised from 7800 rpm to ~8500 rpm
  • All other gears raised from 8300/8400 rpm to 8500 rpm
  • Launch Control RPM raised from 5500 to 6300
  • Launch Control attempts raised from the 200 max limit to unlimited
  • More aggressive and consistent Launch Control
  • Refined Drive and normal driving shifting
  • Current gear displayed on dash in all modes
  • "True Manual Mode" Manual Mode holds and will not down shift or up shift (OPTIONAL)
  • Higher pump speeds for transmission cooling.
  • Higher clutch pressures at all RPM and LOADS
  • Raised TQ limiters




Customer Draggy Run with JHM Stage 2 ECU/TCU and Supporting JHM Mods:/



Our preliminary testing we have shown exceptional results of 11.88@115mph on 91 Octane and in this video 11.89@116mph


In addition to optimal performance, our JHM Stage 2 Performance ECU and TCU Software significantly improves the RS5s EGT (Exhaust Gas Temperature).  This is beneficial because lower EGTs will improve catalyst life, and better engine protection for long periods of hard use for Road Racing, Autocross, Etc..


Recommended Supporting Modifications:
-JHM Downpipes and Cat-back Exhaust: The JHM 2.75" downpipes and Cat-back we sell are optimal for our tuning and the best option out there. Please call us for more information or search SKU JHM-RS5CBEV


For Flashing Method, select "Flash Myself, SEPARATE POWER CONNECT Cable Purchase Required, CLICK LINK BELOW" if you're going to be buying a cable from us and flashing your car on your own. You'll need to add this option.


and add to your cart after adding the tune, just selecting the option is NOT enough. Make sure you have THOROUGHLY read through the instructions and are confident that you can set your computer up correctly. If you select this option for your tune, you must select a shipping method for your order so we can ship you a JHM Tuning-Flashing Cable. Please select a shipping method once you've added the tuning and the flashing cable to your cart. Instructions for installing the flashing software on your computer will be emailed to you after purchase.


If you already have a JHM POWER CONNECT Cable, select "I already have a JHM POWER CONNECT Cable." **NOTE: This is a proprietary cable with drivers specific to our Flashing Software so you must make sure that you have a JHM POWER CONNECT Cable, NOT just a generic USB Vag Com cable.** After receiving your paid order, we will send you an authorization form which we will use to create your JHM Tuning Flash Browser account and login information. This is the information you will use to access our server and flash your car with the JHM Tuning-Flashing Cable that you already have.


DISCLAIMER: JHM is now using proven flashing technology in order to get our tunes on our customers' cars in the quickest and most convenient way possible. You will be installing a proprietary JHM software that works ONLY with our flash cable (supplemental software such as Microsoft .net may be required). This program is what allows you to detect your ECU part number, fill in your information, select the correct program based on your hardware and then write JHM Tune to your ECU all through your OBD II port. Both of these programs are highly specific when it comes to configuring your computer to run them properly. While every effort has been made to clearly and completely explain this configuration in our instructions, the customer will ultimately be responsible for removing or disabling their own or third party anti-virus software or firewalls that will block the port required for you to log into our flashing server (see the link to our instructions below to determine whether or not this is something you'll be able to do). Basic technical support provided by JHM to help install these programs on your computer, diagnose programs with your computer, and/or internet connection may be subject to an hourly fee. Additionally, if something happens to your ECU during the flashing process, you should be able to restore it using our software. If you are still unable to make the ECU flash properly, you will be responsible for all costs associated with restoring your ECU and fixing the issue.


Requirements for Tune: 
- Windows computer with at least 1 USB (Universal Serial Bus) port 
- Wired Broadband Internet Connection (wireless can be unreliable) 
- JHM Tuning-Flashing Cable (Flash cable length cannot extend beyond 10 ft long unless a powered USB hub is installed in-line. 
- Battery Charger or equivalent power source capable of sustaining a 40 amp charge


You can download and view the instructions HERE to determine whether or not this is something you would like to do.


If you would like to get tuned at our location in Lathrop, CA please give us a call to schedule an appointment! If you'd like to get tuned at a JHM dealer close to your location, you can find one using our Dealer Map by clicking the "Dealers" Tab at the top of this page. You will need to contact your preferred dealer directly and schedule a tuning appointment with them. You shouldn't be charged more than an hours' worth of labor for your JHM Flash.


Our dealer network is large and growing daily. If we do not have a dealer within an hour drive of your location, we will do everything possible to build a new relationship with a shop close to you on your behalf. Please contact us for more information.


For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout. If you are looking to purchase other products at the same time as your tune, please do so on a separate invoice.



This product fits the following vehicles:
Make Model Chassis Engine
Audi RS5 B8-B8.5 (2011-2015) 4.2l V8 32v FSI
Customer Reviews (1)
I purchased and installed the ECU tune a year prior to purchasing and installing the TCU tune. The ECU tune certainly made a difference, but there were some engine performance elements I was terribly keen on.

As an aside, I had a manual S5 with JHM tune, and that engine was so smooth and you couldn't possibly get any more throttle response. So, I was spoiled and comparing the RS5 ECU to the S5 tune.

I just had the TCU tune. It's a MUST!! The engine is noticeably more responsive, and runs so much more crisp, smooth. The shifts in particular are so smooth. Even dropping from 6 or 7 to 3rd, no problem!

It's still an automatic, so it isn't as good as the manual S5 with ECU tune. However, I doubt you could get much closer. I really love it. I'm going for rides just because. I'm so happy with how smooth and responsive it is adding the TCU tune. Even my girlfriend in the passenger seat can feel it's smoother.
Review by Mark (Posted on 10/3/2020)
Write Your Own Review
You're reviewing: JHM TCU (DSG) and Stage 2 ECU Tuning Bundle for B8 RS5 4.2L FSI (32v)
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

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).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., 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 has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

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

Learn More:

Q and A

Product Questions

Could you do a custom tune map for E85 and headers ? I understand I may need a high pressure fuel pump.
You may also be interested in the following product(s)