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SMI 99251 Stay-In-Play Duo RV Tow Brake System

by SMI
3.8 out of 5 stars  See all reviews (4 customer reviews)

List Price: $999.95
Price: $879.99
You Save: $119.96 (12%)
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Only 8 left in stock.
Ships from and sold by The Hitch Spot.

Frequently Bought Together

SMI 99251 Stay-In-Play Duo RV Tow Brake System + Blue Ox BX7365 Alpha 6,500lb Tow Bar
Price for both: $1,411.24

These items are shipped from and sold by different sellers.

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Product Features

  • Hidden Installation, Always ready to tow
  • Fits EVERY tow vehicle, Power brakes active in the towed vehicle
  • Truly proportionate braking, Chassis Approved Air Tap In
  • LED Coach Notification, Step-by-Step Video Instructions

Product Description

DUO is the next generation supplemental brake system. Introduced in 2003, the Stay-IN-Play experiences great reviews from customers and dealers alike. Dealers rave because of the ease of installation and the lack of returns from dissatisfied customers. Customers love it because it performs day in and day out. DUO takes the Stay-IN-Play to a new level. We call it DUO because two is better than one. First and foremost, DUO uses both air pressure and vacuum. Vacuum is created to energize the towed vehicle's power brakes and the air pressure to apply them. Secondly, DUO requires two separate signals to activate the towed vehicle brakes. Using two activation signals is the best method for eliminating complicated electronics and control unwanted or unnecessary activation of the towed vehicle brakes. By combining the brake's of the coach with deceleration, you have better control of the system rather than the system controlling you. We also believe that simplified electronics and fewer mechanical parts will provide you a better foundation and last longer. Another key difference in the DUO is the Coach Notification System. There is only one way to obtain reliable information about the towed vehicle's brakes and we believe this to be through the towed-vehicle's brake light switch. Many will argue that there is another way; that there is a better way, but if you think it through, you will agree, the brake light switch eliminates the question. One has to wonder, how many systems today are really easy to use? Many claims are made in advertising literature but is brand X really easy to use or do they just want you to think it is. DUO is REALLY easy to use, just turn it on. We make no inflated claims. You do have a two to three-hour install, just once. This is the DUO difference, install once and always ready. That is easy. Contact us with questions or to locate a dealer near you.

Product Details

Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars
3.8 out of 5 stars
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Most Helpful Customer Reviews
8 of 8 people found the following review helpful
We traded our Brake Buddy for SMI Stay-in-Play Duo (for gas motors). When it works we're very pleased, although I wish I had shopped around more because we would have much preferred proportional braking rather than progressive. But we own it now.

Our biggest disappointment is their apathetic customer service. We purchased this system because we wanted something to set up with a reliable coach notification system where we could "see" when the brakes were being applied in the toad. That's precisely what SMI advertised.... "Another key difference in the DUO is the Coach Notification System".

Unfortunately The coach notification consists of a cheaply put-together cable that runs from below the dash to the rear view mirror with a small light attached by Velcro and meant to be visible in your camera. Two problems with this - it is neither visible in our backup camera (we can't even see our windshield) and it does not stay attached to the mirror because the Velcro glue melted. They'll offered to send us new Velcro, but what about a "proper" coach notification system as they advertise. They won't offer any other assistance.

They may have a great product, but if you can't be sure when it is working, what good is it. They say it was our responsibility to decide how we wanted the notification installed, but various possibilities were not mentioned in their documentation or on their website. We couldn't have foreseen this.

We used an installer recommended by SMI, but they take no responsibility for the installer either. They claim it was installed per the instructions which assume the rear view mirror is visible in the backup camera. So, they say it was installed properly per the instructions, but clearly this is a design flaw.
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4 of 4 people found the following review helpful
4.0 out of 5 stars Looks Good January 7, 2014
By WillyB.
Verified Purchase
I have finished installation in a 2014 Ford Focus Titanium Hatchback and it was not easy - no fault of the brake unit. I hade to fabricate a mounting plate because of the tight quarter under the hood but that would have been true of any brake module that has to go in there.
There was also the issue of Ford's instruction to disconnect the neg (-) battery during towing which would have rendered the brace system inoperative. The SMI help line was very helpful with this & wiring the brake monitor light bar.
Also the wiring of the Focus brake lights is different in that the wires for the right and left lights go down the right and left sides respectively in bundles of about 50 wires each and the wire colors are nothing like in the instructions. I had to remove the tail light assemblies to discover the wire colors at the connectors - which were different. Note all wires were 2 color wires (main color with a colored strip). I did get it done but I am a little concerned about having to tie the 2 wires together with a length of wire running across the car. Maybe a pair of diode isolators would have been a better idea with so many sensors and computer controls in the latest cars.
There was so little room in the cockpit of this car that I ended up having to install the G-Force controller box in the glove compartment. Not really a bad location - make the entire installation invisible. The Only reason I only gave it 4 stars is that my RV is winterize so I have not been able to road test it. I will update this later after I have.
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1 of 1 people found the following review helpful
5.0 out of 5 stars Outstanding Product February 22, 2013
By Enoch
My wife and I recently retired and purchased our dream Coach a few months ago. We spent a lot of time looking at different braking systems wanting to pick the best one, and let me tell you we couldn't be happier with our Stay In Play. It took the technicians about 3.5 hours to install it and after that the work was done. The peace of mind this system gives us while we tow is priceless. I would recommend this product to every fellow traveler.
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4.0 out of 5 stars Easy Amazon purchase! June 21, 2014
Verified Purchase
Both seller and Amazon did a great job, with pricing and delivery. Was not happy with SMI's service though: When I called for support, the rep gave me an "I told you so" attitude because I had not purchased directly from them. More irritating was their response to my DIY approach to installation! From this respect, I would not refer this product to another DIYer.
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