I ordered the 2017 Civic seat risers from
SRAUTOSHOP.COM since the Insight is very similar. While they fit well, there are a few caveats you should know about if you attempt to install them in your own Insight.
1. The Insight uses T47 Torx bolts and not standard hex bolts. Make sure you have a T47 bit and a breaker bar before starting. Harbor Freight is a good place to acquire both of these items.
2. The risers will jack up only the rear of the seat. This is fine and feels normal. Just want you to know this.
3. Once installed, you'll be able to see the under-body color beneath the seat risers. I have a white Insight with black carpet, so this is noticeable. I'll do something to mask this when the weather warms a bit.
4. Pay close attention when installing the new, included bolts. There is a line in the instructions to make sure they are not cross-threaded. Since my Insight was likely made on a Monday, the factory bolts in the rear were (surprise!) cross-threaded. It took me a half-hour of tap-and-die to fix it.
In all, I'm happy with the results. My wife, daughter and mom all agree that the passenger seat is much more comfortable now, and the view is much improved.