I'm just finishing up one of the new Journey to The Force Awakens books, Smuggler's Run. It's a young adult novel but it's pretty ok. 
"He pushed the throttles forward, feeling the Falcon surge, and slapped the illegal SLAM activator he'd installed to give the ship an additional burst of speed."
So the Falcon has a SLAM drive. That's canon.
Before anyone starts whining about canon and Legends and all that, just don't. ![]()
Also the YT-1300 in X-Wing doesn't need any fixes or changes or anything like that. I'm not suggesting that.
I just wanted to have a little thought experiment about how silly it would be if the YT-1300 came with a SLAM action and what that would be like. NOT THAT IT SHOULD HAVE ONE, but what if?