OEM Exhaust flaps

[Ramit392]

On a Hellcat you can wire the flaps to stay open while the exhaust is cold before you start it. Will not get any codes, and you do not have to change your exhaust. I'm sure you would be able to do the same on the exhaust of the RHO. Look for the box on the exhaust and that's it! You will see what I'm talking about once you follow it. It will not hurt anything, can change it back when you want.

 

[tbolts10]

On a Hellcat you can wire the flaps to stay open while the exhaust is cold before you start it. Will not get any codes, and you do not have to change your exhaust. I'm sure you would be able to do the same on the exhaust of the RHO. Look for the box on the exhaust and that's it! You will see what I'm talking about once you follow it. It will not hurt anything, can change it back when you want.

The RHO valved are not electronic, they are flow controlled.

 

[frogjbm]

I've made another video with the mics placed in a better location. You still get a bit of road noise but that's unavoidable while driving. This is still my original setup. Please let me know what you guys think about it. The is an external mic set up, no interior sound clips were made.

So he only thing done here was removing the mechanical flaps so it’s constantly open?

 

[MRT Performance]

The RHO valved are not electronic, they are flow controlled.

We've heard from several individuals who worked on the TRX that flow-controlled valves were chosen over electronic valves because, during shakedown testing in extreme desert conditions, closed electronic valves were causing catalytic converters to overheat and fail. While we can't confirm this with absolute certainty, it's what we've been told, and we wouldn't be surprised if the same thought process was applied to the RHO.

 

[frogjbm]

We've heard from several individuals who worked on the TRX that flow-controlled valves were chosen over electronic valves because, during shakedown testing in extreme desert conditions, closed electronic valves were causing catalytic converters to overheat and fail. While we can't confirm this with absolute certainty, it's what we've been told, and we wouldn't be surprised if the same thought process was applied to the RHO.

Yea I’m removing mine permanently.

 

[Ctech-Review]

Ram was smart to go with a dummy passive valve vs the active Valve ford went with. The Ford system is substantially more expensive and brings other problems...but the Raptor Exhaust system stock sounds great.

 

[MattH89]

We've heard from several individuals who worked on the TRX that flow-controlled valves were chosen over electronic valves because, during shakedown testing in extreme desert conditions, closed electronic valves were causing catalytic converters to overheat and fail. While we can't confirm this with absolute certainty, it's what we've been told, and we wouldn't be surprised if the same thought process was applied to the RHO.

Are the valves in the portion of the exhaust that's replaced by your system?

 

[MRT Performance]

Are the valves in the portion of the exhaust that's replaced by your system?

Yes, the valves are positioned on the stock muffler inlet tubes, just after the factory clamps.

 

[Dcchris311]

So he only thing done here was removing the mechanical flaps so it’s constantly open?

No, I've added an x-pipe to help with the sound and also 2 resonators for a slightly deeper tone than a system with just straight pipes.

 

[Dcchris311]

Sounds damn good to me. What are you hoping to accomplish with the Y pipe setup?

I'm going for a deeper tome and I also want the exhaust pulses to combine for a smoother sound. So it'll be a y-pipe feeding a resonator which also act like a expansion chamber and in theory it SHOULD get rid of some drone/rasp and then back into a y-pipe so it ties into the oem system.

 

[Ramit392]

The RHO valved are not electronic, they are flow controlled.

That is great!!! Wish the Hellcats were!!