In this video, I take the muffler off my Arctic Cat 400 to hear it straight pipe and it is super loud. Another reason I took the muffler off was to drill some holes in the baffles to make it flow a little bit better because the engine did feel a bit lame but now it feels and sounds a little bit better. Also, performance muffler is like $300 so that's why I am modifying the factory one.

Arctic Cat 400 Playlist:    • New Project! | 2005 Arctic Cat 400 4x...  

More 4wheeler videos:    • Chinese 4Wheeler with Stage:1 Predat...  

Thanks for watching!