I wanted to try one just to see if they really worked,it did but i found somethiing else,before the install i couldn't see fuel coming out the exhaust,why you ask ?,because i heard a good tuned engine would leave a vapor trail,before i put mine on i couldn't see a vapor trail because of prop wash,now it's easy to see.It may not be the truth but i did hear it ,now it works so good i might put on some extra pipe and tie it to my landing gear just to see.

*I like to experiment sometimes just out of curiosity*