Redvmax

I have a 2015 Dodge Ram 2500 6.4. Wanting to put on a Flo Pro 2505 3inch dual inlet and 3inch dual out. Any body run this? Curious about the torque and hp gain.

terravast4

iTrader: (25)

never heard of this brand

1994Vmax

iTrader: (4)

None. The big oval flo pro junk I had on my 05 killed power. And drone... you would think that big garbage can would be quiet which note wise it was but the interior drone at cruise rpm was maddening. Seriously look at other brands of mufflers over those.

flatblack83

I had a big oval on my 2500hd, i didn't notice a power change tho. Dual 3 inch in and out. I had the 2505 and its stock-ish quiet with no drone.(almost too quiet) The quietest muffler i had with my long tubes. It had a deeper sounding idle and at low rpms. I removed it for a set of magnaflows for more sound and they are loud as hell. I don't know the quality of the flopro or how it is performance wise, its about 30lbs tho... I sold the flopro to a buddy to buy the magnaflows and might even get it back since he hasn't used it, long tubes are hard to keep quiet...lol.


The 2505 is fully open both 3 inch pipes at the exit, the 2500,2503-04 have one side flowing and the other is restricted until you on the throttle. I called when i bought it and asked what one would flow the best for a supercharged application.

1994Vmax

iTrader: (4)

They are still a chambered piece of **** inside just like the stock junk is. You could probably take your oem dual outlet muffler off a 2500HD and punch open the resonance chamber side achieving the same thing.. and at least it would be stainless and not aluminized like the Big Ovals. Really expensive and sound awful lol