GWI For Cessna 172N

100 Pound Gross Weight Increase For C-172N ONLY

The Power Flow tuned exhaust does give you more power, more climb, better fuel economy (at current speeds), and a host of other benefits, but it does not give you an automatic gross weight increase. This STC does. The 100 pound gross weight increase is not required as part of the tuned exhaust, but it is definitely a smart purchase.

Would you buy a TV without a remote? Most likely no.

So if you are going to buy the Power Flow tuned exhaust for your 172N, why not purchase the Gross weight increase and allow your airplane to operate at its full potential.


- Must have a cowl cooling lip (ordered from Cessna - SK172-56)

- Must limit flaps to 30 degrees