Speedwerx Muffler Comparison on Arctic Cat Blast ZR 4000

Many have been asking about Speedwerx go-fast goodies for the 2021 Arctic Cat Blast models, and this is going to be an easy upgrade. The stock muffler on the new 4000 machines is the same fitment as the current 2-cylinder models, so we put our Standard Lightweight and L2 Competition Series Mufflers on one to see what they would sound like with the 65hp, 400cc single-cylinder EFI 2-stroke engine. Much like the 6000 and 8000 models, you can add a more aggressive sound and remove a pretty good chunk of weight in a matter of minutes. Stay tuned for more detailed information and product announcements on www.speedwerx.com as the development continues...