408 tested with 8 different Flowmasters

This clip is a great find. Thanks for sharing. Very good to see interior db readings, too. I didn't notice a crossover pipe on the test car, which explains the rap I thought I heard.

I thought it might help guys decide which ones to choose. I know it's gotten to be pretty common for people to use Flowmasters. The fact that they were doing the test on a Mopar with a 408 might make it more relevant to hear. I found it easier to distinguish the differences if I cranked the volume up when listening to the tests.