Hello, The Calmini mufflers are quiet with a little rumbling sound.

Please get a JEBS catalog...they may have the right muffler for you....So many too choose from and sizes too...

I just added a MSD blaster 2 coil on my old Dodge ram...Wow! what a difference it made..started up quicker and runs much smoother, feels it has more power? .........Aloha

Click on JEGS