did a search didnt come up with much pros cons?

 

Here ya go: www.nightrider.com All you need to know. They do work as advertised, but no more.

 

Welcome to the forum!

Without getting into the marketing hype, why do you think you need them?

 

I have a set that I bought about a year ago, they do work as advertized and richen up the mixture a little.
My gas mileage didn't change to much and the decel popping went away.
As an added bonus the throttle was more responsive from a stop.

It's a piggy back system that tricks the ECM into thinking the bike needs more fuel.

 

Here is a good thread that you can refer to if you are looking for a tuner.

CLICK ME

What the XIED products do is trick the ECM into thinking its running leaner than what it actually is so that it adds more fuel. They are effective if all you have or are planning on doing is the stage I. Feel free to call or write with any questions.