Wow, I can’t believe you responded.
I saw where you responded to a YouTube video mentioning that you had these mufflers and were going to put them on your GTO, but I did not know how to contact you.
So I knew I wanted a Dynomax brand super turbo, and I wanted to use the 20” inch long body 17749 units but they seemed too long. The 14 inch 17734 units seemed just right but I feared would be too loud. I found these 16 inch 17629 units and bought them. Only to learn later that they are not exactly turbo mufflers. I mean a half is and the other half is a hel lots chamber. Dynomax says they only flow 350 cfm. I’m so bummed. Check out the photo I added of the internals of the muffler. They do have an S flow but there is not much room and no flow directors.
Did you notice a decrease in performance?
Also, not sure how to add a photo
__________________
 1965 Pontiac Catalina 2+2
|