Already bought a JRJ downloadable tune file or Base Tune? Put your fixed purchase credit toward the next level of tuning support. Choose the help you need, review the build from your previous purchase, and pay through a dedicated upgrade checkout.
Download → Base Tune
Move from a pre-written Compare & Copy file to a tune built from your own stock read. Base Tune focuses on startup, idle and initial driving, with two revisions. It is a starting point for your build.
$99.99 USD creditChoose this upgrade
Download → Full Custom Tune
Move straight to Full Custom Remote tuning, built from your stock read and refined with datalog reviews. Includes up to five revisions for your submitted combination.
$99.99 USD creditChoose this upgrade
Base → Full Custom Tune
Continue beyond the Base Tune starting point with Full Custom Remote tuning, datalog review and further refinement. Your Base Tune purchase provides the higher upgrade credit.
$169.99 USD creditChoose this upgrade
Your selected vehicle, engine, cam and add-ons use the same pricing as the main tune builder. Your verified fixed credit is subtracted from the tune price. The exact amount, plus any tax and equipment shipping, is shown before payment.
- Sign in & choose your purchase
Use the customer account linked to your original JRJ order. We check eligible paid purchases automatically; you do not need to type in an order number or wait for a payment link.
- Review your build & pay the difference
Choose Base or Full Custom and review your saved vehicle and modifications. Add missing details or edit only what has changed, then check your price and credit before secure checkout.
- Open your tune portal
After payment is confirmed, open your portal to continue the tuning process. If you do not have portal access for this tune yet, a portal link is created and sent to you. Existing portal links and tune history remain available.
THE BUILD COLLECTION / SHARE MY TUNEBuild details 