Flowmaster 70 series
Posted on Gen II forum, I want to install Fastman 52mm and 3" cat-back exhaust. Looking at Flowmaster 70 BB II SISO. How does it compare to Magnaflow or Dynomax? I want to keep interior resonance down so Mama doesn't get a headache and will still ride with me!
This is for a 2001 QC 1500, 5.9L, long-bed.
This is for a 2001 QC 1500, 5.9L, long-bed.


