These are DynoMax VT's on my 48 F1 with a Ford 408 Cleveland engine.
After posting this thread I was not aware that DynoMax discontinued the VT. I really like the sound and have not had any problems.

 

It's very hard to tell from that but that is quite possibly the dumbest attempt at a sales job for mufflers ever .

 

I thought it was pretty funny, but they do sound good.

 

I'm running a SBC and have headers that runs dual 2.25" with no cross over (may add one) to Flowmaster 40's that dump right in front of the rear tires... It's LOUD! I would like to quieter as it get's on my nerves after awhile...

 

Hey Jeff,
Take your time on the muffler choice. It really matters & there are a lot of
choices - the noise difference between brands is significant.

Hmmmm.. We started with Flowmaster 40 series... Ridiculously loud.
My son loved them ... I was going deaf.. My neighbors were bringing their
children in off the street...

In our local Craigslist there were just a ton of Mustang GT guys swapping out their
brand new stock mufflers for more aggressive ones. We picked up a pair of new
stock GT mufflers - nice, aggressive, but not mind numbingly loud....

Good luck over there. We've got a 1950 F1 with a 400HP 351W with side exit
pipes... mufflers really matter to your quality of ride.

Ben in Austin
1950 F1 (351W/AOD)

 

In my experience there are two things which affect muffler loudness...a crossover pipe and where it exits. A crossover pipe and a rear exit will reduce loudness. Lack of a crossover pipe and a side exit will increase loudness. In both of my trucks I used turbo mufflers without a crossover pipe and a side exit. Sound was exactly what I wanted.