Installed on a CB750K 1980 DOHC with 4 to 4 exhaust.
The idle sound is great , the volume is just about right not to annoy the people around, and while driving its a good deep sound.
The install was a bit tricky as the old baffle only came out when i pushed a wood rod in and pushed it hard out. (so i had to take all 4 mufflers out)
Grate service and response to mail!
Reviewed by: (Verified Buyer) Moshe Eliyahu from Israel.