SEMA SHOW SPECIALS!

Black Friday Sales start NOW!

Flexible payment options and pay later now available: PayPal, Stripe, Klarna, Cash App, Apple Pay, Google Pay
SKU: R04-PL0-00-RED

HP Tuners RTD 4 - Blank

No reviews yet. Bought this? Write the first review
Regular price $399.99
Shipping calculated at checkout.


Shipping & delivery

Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).

Shipping policy · Returns · Fitment questions? (561) 207-7988

Delivery and Shipping

Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.

Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.

Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.

Description

The HP Tuners RTD4 is the next generation of Remote Tuning Devices, built for seamless wireless tuning, diagnostics, and datalogging. Designed specifically for professional tuner workflows, the RTD4 works hand-in-hand with the HP Tuners Tune Delivery Network (TDN) to deliver Dieselr’s custom calibrations directly to your vehicle — no laptop required.

Key Features:

  • Supports 300+ Vehicle Controllers – Compatible with the latest HP Tuners-supported platforms, including CAN and VPP protocols.

  • Wireless Tuning via TDN App – Flash tunes, send datalogs, and receive updates right from your iOS or Android device.

  • Diagnostics Anywhere – Read and clear DTCs on the go.

  • Faster Transfer Speeds – Built-in Wi-Fi hardware (enabled with future firmware update) for rapid file delivery and logging.

  • Secure Workflow – Customers cannot access VCM Editor, ensuring calibration integrity and tuner IP protection.

  • Fully Compatible with VCM Scanner – For complete diagnostics and logging functionality.

How It Works:

  1. Read your vehicle’s data using the RTD4.

  2. Send files to Dieselr’s tuning team via the free TDN app.

  3. Receive your custom calibration.

  4. Flash directly from your smartphone.

Why Choose the RTD4 from Dieselr?
We don’t just sell you the device — we connect you to our tuning network for precise, dyno-tested calibrations built for real-world drivability and performance. Whether you’re on the track, trail, or highway, the RTD4 gives you professional-grade tuning power in your pocket.

Note: Base price is for the RTD4 device only. HP Tuners adapter cables, credits, and tuning are sold separately. See Dieselr’s tuning section to bundle with your specific vehicle.

Fitment & installation

Check the selected part against your vehicle. Need help? Call (561) 207-7988.

Selected part: R04-PL0-00-RED

Loading vehicle fitment…

Choose another option · Contact our shop

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.