Here is the deal on standalone's. Will they work yes, will they work great with the slingshot yes, especially the haltec because it is a can buss system like the slingshot. But 99.9% don't need it. Unless you're building your engine and going for big HP their is no real advantage and its $$$$$ Bob's tunes have been tested and tested and adjusted and tested again and again. Yes its a canned tune but we are making very little HP on these stock engines and a one off tune is not needed.
Not only do you need to buy the system but if you don;t know how to tune you will need to rent a dyno and hire a tuner to tune it for you, witch can easily add 1500-2k+
see...... told y'all....
Thanks for weighing in.....