Phone tech support is included. We also provide these services. Mail order tune starting at $100.00, Base tunes starting at $100.00, Remote tuning starting at $200.00, Basic tuning training starting at $350.00 and Advanced tuning starting at $600.00.
- This harness has premium BRAIDED wire cover at no extra cost to you.
- This harness comes with the Sound German Automotive 8HP Transmission Harness and computer kit needed.
- Supporting 8hp swaps with the majority of the FCA calibrations only. Some TCMs require reprogramming. Support is being expanded as issues arise.
- Plug and Play into your existing Hemi engine harness
- Wire Ends labeled so you know where to connect (12V+, Ground, Fuel Pump, Starter, etc.)
- All of our products come with the best tech support and customer service for your hemi swap!
- Current Transmissions supported - All 8HP Transmissions
This HPI harness is designed to work with the 2015-2023 Car Hemi 5.7L and 6.4L (USA) engines. These engines include 2015 -2023 Chargers, Challengers, and 300C models. That's right, it doesn't matter what vehicle you are putting it in, this harness is designed to power (standalone) the Hemi that came out of the vehicle(s) and years stated above. You will need the factory engine harness still on the engine. This HPI harness will plug into it. Our harness will plug and play into your existing factory engine harness and ECM.
Note
: This harness is designed as a basic hemi engine swap harness for most older vehicles and hot rods with fewer electronics. This harness comes standard with AC command control for your factory Hemi AC compressor. It does not include provisions for factory gauges and other accessories (heat, cruise, ABS, etc.). Those items will need to be added on by the end user as desired.
Use of high power/high amp fuel pumps require second fuel pump relay!!!
Plug and play full Harness with plug and play connectivity for 2005-2022 Charger/Challenger dual electric fans (non-PWM)
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.
Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.






















