Review on ποΈ Dynomax Ultra Flo 17221: Enhanced Exhaust Muffler Performance by David Carmody
Great sound with no hum
They are nice, I have a small block 400 with a soft cam in 63 Nova SS, they sound amazing, I had hooker areo chambers, the drone was awful, they don't have a drone with me side pipes, also good quality. I would wholeheartedly recommend them for an old street car where you want a raspy sound with no rumble.
Pros
- SUPERIOR PERFORMANCE -- Straight-through design provides unrestricted exhaust flow and reduced back pressure; Dynamic flow proven to reach 2200 scfm
Cons
- Something else
