JHM ECU Tuning for C5-allroad (04-05 with BAS Engine Code) 4.2L V8

Introducing JHM Tuning for the C5-allroad with the 40v 4.2l V8!!!

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

If you are looking for the ultimate in tuning for your C5-allroad whether it is an Automatic or Manual transmission, you are in the right place.

Why is our tuning the BEST? Our tuning is specifically designed for an aftermarket exhaust. It is not another “cookie cutter” software that will work on a stock car, thus limiting its abilities.

The minimum required for your exhaust system is as follows:
-Downpipes: Piggie downpipes (which we sell) are good. Aftermarket downpipes like the Fast Intentions 2.5 inch downpipes we sell are better. Our JHM Longtube Headers are the best setup. However, you will need to do some minor modifications to run our Fast Intentions Downpipes or our JHM Headers on your C5-allroad.
-Cat-back: You must have a high-flow, dual 2.5 inch cat-back with an X-pipe. The Magnaflow cat-back we offer for the C5-A6 2.7T is the most convenient solution for a C5-allroad 4.2L. With slight modifications it will bolt right up to your allroad.

In typical JHM style here are some videos of the performance our tune is capable of producing on the B6-B7 S4 Platform with a very similar engine:

VIDEO JHM 12.97 @ 109.1 All-motor and Bolt-on parts quarter mile pass:

VIDEO of a JHM customer’s B6-S4 (13.03 @ 105.9mph in the quarter mile) with JHM Tuning:

VIDEO of a JHM tuned V8 S4 pulling away from a stage 2 B5 S4 and one of the first JHM Longtube Header equipped V8 S4s:

VIDEO JHM burnouts and abuse with our B6-S4:

OPTIONS: When you place your order for JHM Tuning, please specify your year by using the drop down box below.

FLASHING INFORMATION:

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.

GO HERE FOR JHM POWER CONNECT CABLE

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

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.

NOTE For MANUAL CONVERSION tunes only. After flashing you MUST recode your ECU, ABS module and instrument cluster appropriately. JHM will provide the recoding settings to do with VCDS (Vag-com) for all but ECU. MT conversion ECUs must come to JHM for coding to be manually forced for the ECU software to work properly. CUSTOMER MUST FLASH IT FIRST BEFORE SENDING TO US AND GET CAR UP AND RUNNING. Customer is responsible with shipping to and from us and this is specified on our product page.
NOTE: Our MT swap tune is maximized for the B6-B7 S4 0A3 transmission due to its better ratios for a NA V8. Search for “allroad 0a3 swap” to find the full parts list and JHM parts needed for this conversion.

For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.