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Review on 🏎️ Dynomax Ultra Flo 17221: Enhanced Exhaust Muffler Performance by Scott Goff

Revainrating 5 out of 5

Good quality, surprisingly quiet, at least when new

This isn't my first Dynomax weld muffler so I knew I was getting a good product. It's surprisingly quiet compared to the Flowmaster it replaced. The difference is HUGE on my TBI 350 K1500. Your results may vary.

Pros
  • SPECIFICATIONS -- Various case diameters available; 2" up to 4" input/output configurations;
Cons
  • It's ok