I've been considering buying full exhaust system from Two Bros Racing along with Juice Box for my ZX14 2007. Does anyone know anything good or bad about the product? My goal is to increase low-rev power output and torque. Will the system provide me that?
Thanx.

"No need for computers and complex maps, just use the integrated buttons & LED display. Uses carburetor tuning logic for easy to understand fuel adjustments."

What the j-box means is it will layer over the existing map. In other words, it will richen from idle up. Because the bike makes no power below 2,000 rpm, you more or less are wasting gas having a setting that low an rpm.

Whereas the complex mapping, you can eliminate any fuel change below 2K. Above that, then yes it is more the better tuning device. However, it won't take that much fuel trim to set the j-box to a performance number. Can the idle handle it? Yes, to a point.

Will it smooth the bottom and give you low end power? Sure. Again, I'd throw that money towards the map style fuelers. Why? Because you can add to the bottom if you wanted. It more kills two birds this way. You're not out of pocket twice meaning.

Thanks for the advice, Hub. I must consider buying Power Commander instead, if I understood you right.

YW. On another note, I have a Dobeck fuel box. I can turn the low/mid off. Add an accel mode and add mid to top. I can run a slight rich setting in the low/mid range then cut it off at a certain point. I can increase more fuel at the mid to high range, shut all the rest off. Options like that. So if the j-box can do that, it's almost the same setup. But the map is the better play I would think?