This might be a new Flowmaster muffler we would like....

[bronconut73]

https://www.summitracing.com/parts/flo-530513

It's a relatively new Flowmaster Delta-Flow muffler.
It's a Delta 50 BB (Big Block).

It's a 2 into 1.
The Delta-Flow Flowmaster mufflers already flow more cfm. And the third chevron eliminates interior drone.

These are likely very quiet unless you have a high compression mountain motor.

My dual Delta 50's I have been running for many years are still perfect....but I was considering cobbling up a high flow single exhaust with my long tube headers. I may have found the perfect muffler for it.

I know a lot of yall were looking for a really quiet but good flowing muffler and my Delta 50's are really quiet and this Delta 50BB is supposed to be quieter.

 

[gnsteam]

Thanks for the post. I will be in the market for 2 into 1 muffler and quiet is what I want. Keep us posted if you get one.

 

[ugly74]

That might be just the ticket for the 440 in the '75 Dodge W200 im working on

 

[bmc69]

Looks a lot like the Vortex I'm running on my '78 Bronco, which is dual 2.5" in and a single 3" out. That aside, the Vortex is not really that quiet, especially at highway speeds.

 

[MS73HD302]

Thanks for the heads up! I love my dual deltas good low rumble I’ll defonately look into this