Is the Curt RVi Series or Demco Stay-IN-Play Duo Better for a 2025 Ford Maverick?
Updated 10/13/2025 | Published 10/08/2025 >
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Question:
Jerred I have purchased the following for my RV flat tow solution: (2019 Forest River Sunseeker and 2025 Ford Maverick Hybrid). DM38CV Demco Tabless base plate kit Demco Commander II Tow bar RM-15267 Roadmaster 4-diode Universal kit 7-6 coiled adapter RM-156-25 Roadmaster Battery charge line kit. I purchased the RVi3 Portable flat tow brake system and separate 12v battery direct kit for the RVi brake to install in my 2025 Ford Maverick Hybrid. After gathering all these, I found your suggestion for the best set up for my vehicle. My question would you recommend I return my RVi3 and install the SMI stay and play system? Is it better than the RVi3? Pros/Cons? Thanks
asked by: Rich D
Expert Reply:
Hey Rich, welcome back! If you plan on keeping your 2025 Ford Maverick Hybrid for a few years and/or flat tow it often, I recommend using the Demco Stay-IN-Play Duo item # SM99251. It's a permanently installed system and all you have to do is flip a switch when you're ready to head out. The initial install is elaborate but the components are going to be completely out of the way for daily driving. I've linked an installation video below we did on a 2025 Maverick so you can see how to get the Stay-IN-Play setup.
The Curt RVi item # RVI44FR is going to require you break it down and set it up each time you flat tow your Maverick.
You'll also need to install the Roadmaster Brake-Lite Relay Kit for Towed Vehicles item # RM-88400. This prevents your Maverick's brake signal from overriding the turn signal from your motorhome when braking during a turn.
Functionally they're both proportional braking systems that are going to stop or slow your Maverick in the same way.
What motorhome do you have? Both Demco braking systems for hydraulic brakes item # SM99251 and air brakes item # SM99243 used to be labeled SMI. I just want to make sure you're getting the correct one.

Rich D.
10/11/2025
Jerred I purchased the DUO on your recommendation and have reviewed the videos and instructions. I’m a bit confused now with this paragraph from your response. I have put the sentences in question in brackets. “The Curt RVi item # RVI44FR is going to require you break it down and set it up each time you flat tow your Maverick. {You'll also need to install the Roadmaster Brake-Lite Relay Kit for Towed Vehicles item # RM-88400. This prevents your Maverick's brake signal from overriding the turn signal from your motorhome when braking during a turn.}” Are you stating I need this RM-88400 for either setup, for the RVi3 or for the DUO? Additionally, I see in the owner’s manual there is an optional part 6492 Air Pressure Regulator listed for the Ford Maverick but no mention in the instructions on if this is needed or how to install. Can you provide any assistance with this?

Product Page this Question was Asked From
Demco Tabless Base Plate Kit - Removable Arms
- Tow Bar Base Plate
- Removable Draw Bars
- Twist Lock Attachment
- Completely Hidden
- Demco
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Rich D.
10/8/2025
Thanks for the reply. I forgot the model number of my Class C in the initial email. I have a 2019 Forest River Sunseeker 3270S