yup, probably very loud. If your using the car mainly at the track, not a problem, but otherwise I would guess you'd get pulled over a lot. Here is a clip, not my car: YouTube - boomtubes w/ o/r prochamber I think Boomtubes by themselves are plenty loud for daily driving. They have a nice clear tone, but when you need to be quiet you can keep it below 3k rpms. YouTube - Boom Tubes on S197 Mustang GT Boomtubes alone, from the inside: YouTube - hurst-shifting
I'm not sure how much different the boomtubes are from the stingers (both straight through type mufflers), but mine is pretty loud inside/outside the car. On a cold start you can feel it when you stand next to it. The prochamber is very deep sounding, there is no rasp in the exhaust note whatsoever.
I love my Prochambers..... been thinking about switching the Flowmasters out for the MACs to complete the MAC exhaust setup.
When I was running O/R prochamber, it sounded a little raspy from the inside, but there wasn't really a sign of raspiness from the outside.
i had an O/R Prochamber with SLP loudmouths which are pretty similar to the boomtubes. I really liked the setup, but it was getting too loud for my neighbors.....and the policeman they called. now i just have an O/R x and the stockers (and electric cutouts right after the headers).
it wont be too loud. but still pretty loud. the prochamber makes the sound a little more pleasing than a o/r h or x. i would recommend it.
