Custom Remote Tune
Built from your stock read with private Tune Portal delivery, datalog review, and revisions to refine the calibration.
Starting at $269.99Build Custom TuneHEMI Cylinder-Deactivation Tuning
HEMI MDS Delete Tune Files for Compatible RAM, Dodge, Chrysler and Jeep Builds
Tune-only MDS delete calibration for compatible HEMI applications after the mechanical configuration is confirmed. Match the vehicle, year, engine, PCM, security status, MDS hardware, VVT state, transmission, tire size, gear ratio, and any other modifications.
Choose by outcome
Three tune paths. No blurred promises.
Vehicle selections stay consistent while the delivery, revision level, compatibility rules, and customer responsibility change.
Base Tune
Designed for startup, idle, and initial drivability. Includes one revision and does not promise the final refinement of the full custom path.
$169.99 • One RevisionStart Base TuneDownloadable .HPT
Prewritten Compare and Copy reference files. Exact compatibility is required and custom remote revisions are not included.
Starting at $99.99Browse Downloadable FilesWhy this page exists
MDS delete tuning must match the installed hardware
This is not a generic HEMI performance or cam tune. It addresses the compatible MDS cylinder-deactivation strategy and cannot repair failed lifters, cam damage, wiring, or oiling problems.
Tune-Only MDS Change
Disables the compatible MDS strategy for the confirmed vehicle and hardware configuration.
VVT Is Separate
State whether VVT is retained, limited, locked, or mechanically deleted and identify the installed camshaft when changed.
PCM Requirements
Model-year-specific PCM security or unlock requirements must be satisfied before a supported flash workflow can be completed.
Tune-only MDS service
MDS calibration cannot repair a HEMI tick or failed valvetrain.
This page covers the compatible MDS strategy within the scope stated by the selected product. It does not repair lifters, cam lobes, oiling faults, exhaust leaks, wiring or other mechanical causes of noise and misfire. Diagnose the engine and confirm the installed hardware before ordering or flashing.
Confirm the cause
Use trouble codes, scan data and mechanical checks to separate exhaust noise, ignition/fuel faults and valvetrain damage from normal strategy operation.
Identify the hardware
State whether MDS lifters and the stock cam remain or whether a mechanical delete and replacement camshaft are installed.
Document VVT
Identify retained, limited, locked or deleted VVT hardware and list the exact cam part number when changed.
Verify access requirements
Confirm PCM security/unlock, supported interface and licensing requirements for the exact model year before attempting a write.
Tune-only request
When the engine remains mechanically stock and the product supports it, the request is limited to the stated MDS operation. Broader performance, cam, transmission or drivability changes are separate work.
Mechanical delete or cam swap
Once lifters, camshaft, phaser or other valvetrain parts change, the calibration must be built around those exact components. Select the HEMI cam-tune path and provide the full build list instead of purchasing a basic MDS-only service.
Clean page policy:Only HEMI tune services and downloadable files appear below. No physical parts, interface bundles or internal add-on SKUs are exposed as product cards.
Complete catalog matches
HEMI MDS delete tunes and downloadable files
This HEMI page displays tune services and downloadable files only. Physical parts, internal calibration add-ons, and standalone interface products are excluded.
Tuning device required: You must have an HP Tuners MPVI2, MPVI3, or MPVI4, or an EFI Live device supported for your vehicle. J.R. Jones Racing LLC does not currently support RTD or TDN devices. RTD/TDN support is planned for the future. Check device requirements.
Need an interface? You can add an HP Tuners MPVI4 to your tune at the bottom of this builder if you would like to purchase one through J.R. Jones Racing LLC. Vehicle credits are sold separately.
Build Your Tune Package
Verified Vehicle Match
Cam Not Listed
Enter Cam Card Specifications
Enter the specifications shown on your cam card. Durations must be measured at .050-inch tappet lift—not advertised duration.
Calculated JRJ Cam Tier: —
Camshaft tuning add-on: —
Choose Your Path
Choose Your Tune Type
Full Custom and Base support listed modifications. Downloadable .HPT files cover only an exact supported cam or delete calibration with no modification add-ons. FIRSTTUNE20 is not valid on downloadable or pre-written .HPT/.CTZ files.
HP Tuners Credits are sold separately at HPTuners.com.
Your Tune Match
Choose year, make, model, engine, and cam selection.
Price Breakdown
Complete your vehicle selections—
Total
Select Vehicle
Need an HP Tuners interface?
Purchase an MPVI4 below to include it in the same order as your tune. Vehicle credits are sold separately.
Final Build Summary
- Vehicle
- Not selected
- Engine
- Not selected
- Transmission / Drivetrain
- Not provided / Not provided
- Cam
- Not selected
- Tune Type
- Not selected
- Modifications
- None Selected
- Blowers
- LSA: No; Hellcat: No
- Total
- Select vehicle
Before checkout
Questions specific to this page.
Every structured answer below is also visible to customers. No hidden FAQ content is added for search engines.
Will MDS delete tuning repair a failed lifter?
No. Calibration cannot repair lifters, cam damage, oiling problems or other mechanical faults.
Is this a cam tune?
No. The basic MDS product is tune-only. A cam swap needs the HEMI cam-tune path.
What if MDS hardware was mechanically deleted?
Provide the installed lifters, camshaft and related hardware so the tune matches the engine.
Does MDS delete also change VVT?
No automatic VVT change is assumed. State whether VVT is retained, limited, locked or deleted.
Do I need PCM unlock support?
Security requirements depend on model year. Confirm the required workflow before attempting a flash.
Can trouble codes be hidden to cover a tick?
No. Diagnose the source instead of hiding useful diagnostic information.
Are physical parts shown?
No. HEMI pages contain tunes and downloadable files only.
Are internal add-ons shown as products?
No. Checkout-only add-ons and MPVI bundles are excluded from public grids.