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RAM RHO HO Downpipes with High Flow Cats +100hp!

D&Sadventure said:
You’re not the only one that prefers the stock exhaust. Have no intention of changing it with the exception of maybe adding a couple resonators after DBallz downpipes.
That reminds me. @DBallz do you still have the valves in the stock exhaust on your truck?
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yes oe valves in place. They are there for drone mitigation, I'm not removing that as I'm pretty sensitive to the drones....
 
DBallz said:
Probably not a video but I do put together fairly detailed installation instructions with my products.

The Fat Cats pair really well with the Cat6 and allow the turbos to spool faster and harder. The bottom end and midrange is dramatically increased compared to that of the Cat6 alone.

The below graph is a boost curve comparison. The orange line is Cat6 alone and the gray line is adding Fat Cats to the Cat6. You can see the vehicle makes more boost pretty much everywhere with max gains of 5.6 psi at 3251 rpm, that is over a 100 hp gain on top of the Cat6 gain.

The combination makes a very responsive truck anywhere in the rpm range and it straight hauls the mail!!

View attachment 20873
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Thank you sir 👍
 
DBallz said:
yes oe valves in place. They are there for drone mitigation, I'm not removing that as I'm pretty sensitive to the drones....
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For what it’s worth, I removed the valves and have zero drone (that I can tell) but of
Course I don’t have sweet down pipes either. Maybe one day.
 
Any updates on release date?

Thanks
 
RB72 said:
Any updates on release date?

Thanks
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waiting on CNC machined billet flanges, billet v-bands, and CNC mandrel pipe bends. Both places are being super slow. usually it's 2-3 weeks but everyone is backed up right now... I've been given an eta of 12.20 for material. Apologies for the delay and appreciate the patience.
 
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Didn’t read through full thread. Did anyone do a dyno on this to confirm +100hp?
 
StuntRDRHO said:
Is it quite a bit louder than stock?
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It's definitely louder, but cleaner and deeper, more refined if that makes sense? No fart noises on acceleration, except when shifting. Doesn't drone, and when you hit that pedal, it comes alive!
 
Bleublaze55 said:
Hey Mikey, was this on top of the stock exhaust or something else? I am running the AFE and it drones bad. I ended up putting in some interior baffles but now it doesn't DSG fart. With @DBallz downpipes on order as with the light mounts, I am worried the louder factor will be an additional problem.
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The stock muff and valves cut out and replaced with the Flowmaster muff...everything else is stock piping and tips.
 
DBallz said:
Bone stock vehicle with nothing but dp’s added.

More power everywhere.
View attachment 20836


+45 lb ft of torque to the wheels is not basically the same, just lower. It’s substantial.

It’s a 6200 pound truck….
With 100+ pound wheels and tires…

Torque moves those things.

The truck made 560hp and 660lb ft to the wheels!

It hauls ass!!

I spend 90% of my driving in the 2-4k rpm range

People who drive the RHO don’t complain about the top end…

They complain about the “lag”

That is pretty much gone now, no lag.
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Just got my truck 2 weeks ago. I couldnt agree more. Low end feels sluggish. Especially just routine daily driving. Great post
 
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