2023 Yamaha Grizzly 700 EHS Racing fuel controller install

[@BAMaher]

What exhaust are you running?

[@battlebornatvoutdoors610]

It's an Empire exhaust, it's the big 3 package by EHS Racing. The big 3 comes with Empire exhaust, EFI controller and new air box.

[@LeroyMoss-yx6sc]

Hi my name leroy what that do

[@battlebornatvoutdoors610]

Hey Leroy, A fuel controller is like the boss that controls air-fuel mixture. When these ATVs come off the assembly line, they’re set up for a specific stock purpose, and the manufacturer makes sure they run lean. When you start adding air boxes or aftermarket exhaust systems, which bring in more air or change the exhaust flow, you’ll need a programmable fuel controller. But even if you have a stock machine, a fuel controller can make a big difference. It can improve performance, make the engine run cooler, and so on.