The bikes already run pretty lean to start with, from the group that I am in people have said that it wouldn’t effect it much, I haven’t rode it a whole lot since I’ve done it cause work and other things, but I don’t have a 100% answer, I’ve just heard from other can am owners that it’s fine to run that way
Runs the same with or with out it only way it will run lean is if you go pith a different pipe can ams will run with with the stock with or wit one the spark arrestor
There are people that have said they ran it that way for a few rides and it didn’t harm anything but, the exhaust creates back pressure, not having back pressure isn’t the best thing for the motor, and the atvs already run a bit lean from factory and changing the exhaust typically makes it worse that’s why most people use tuners many people say it’s fine to run with out but personally I wouldn’t do it for a long period of time
