MBRP exhaust systems

[nolimits76]

Yeah I've got one on my 2014! I love It, has the sound I was looking for and is good quality. If you do a search on here my thread on it is called "installed my new MBRP exhaust"

I have a link to a video of it on that thread as well

For the lazy...

http://www.ramforum.com/f44/installed_my_new_mbrp_exhaust-50853/

 

[nolimits76]

MBRP Performance Exhaust


Guess I'm blind as hell then cause I don't see it....

I'm curious too....but if you look at pages 49-52 of their catalog several muffler only options exist.

 

[BoldAdventure]

I'm curious too....but if you look at pages 49-52 of their catalog several muffler only options exist.

I think the only difference is that the units in the catback have a a y pipe dual out in place of the straight thru design seen on all the units sold free. This makes sense since everything is "Bolt up" and ready to go on the cat back. No point including the y on the installer series because they have no idea how it will be installed. They've left that decision to the installer.

I've seen one person claim the catback is of larger sized piping, while multiple others have stated it's the same 3 in and 2.5 dual out.

That would be my question. But I'm guessing that a 3inch in Installer Series with 3 inch out should work with a y to 2.5 if you have dual rears and want to just use the factory bends.

 

[nolimits76]

I've seen one person claim the catback is of larger sized piping, while multiple others have stated it's the same 3 in and 2.5 dual out.

That would be my question. But I'm guessing that a 3inch in Installer Series with 3 inch out should work with a y to 2.5 if you have dual rears and want to just use the factory bends.

Using the Challenger as my basis, the RT (5.7) models have 2.5" diameter exhaust pipes. The SRT's (6.1/6.4) have the larger 2.75" diameter exhaust. Many of the RT guys will swap their crappy RT manifolds for SRT (or aftermarket) manifolds/shorty headers and mid pipes. The SRT mid pipes (factory or aftermarket) are also 2.75" diameter.

So unless you also swap to an SRT sized (2.75") exhaust, you are faced with needing the 2.75" to 2.5" reducer to connect the mid pipes/cats to the cat-back exhaust. You can use the reducer w/o any ill effects, and many guys do just that.

In fact, many prefer to keep the smaller RT (2.5") exhaust because it builds a little more back pressure. While the larger exhaust will flow more free and provide some higher RPM gains, you lose some low end torque in the process.

All that being said, I think using a reducer on the Ram would work fine. Also, I think having the same size of the stock pipes would be more beneficial for low end torque (towing, WOT, etc).

 

[mhb1638]

I really didn't think this would be such a difficult issue for people. If you look online through a website, lets say AutoAnything for example, it lists two universale SI/DO muffler sizes...14" body or a 20" body. So again, these kits...is th emuddler included 14" or 20"? Thats all I want to know.