Installing Aftermarket Upgrades on my Jailbreak

I HIGHLY doubt any Dodge dealer is going to void warranty work over a catch can. It's a passive device that alters nothing and only removes the dirty oil atomized into the air that is sent back into the engine to burn. I have never heard of a single instance of anyone catching a hard time over a catch can from a dealer. The diff brace to me is insurance against excessive wear and possible breakage from wheel hop and hard launches. The way I see it, I would rather have it on there preventing the diff from moving all around and causing wear and damage to the axles or gearset. If by some chance I do have a problem, remove four bolts and it is back to stock. I think the more risky approach is not using a diff brace and incurring excessive wear and damage while under warranty and then finally breaking after the warranty is up. Oh also the UPR catch can is plug and play. Save the factory hoses which are also snap-on and you can always remove the catch can before taking it to the dealer in literally 5 minutes.

Reaperhwk said:

I have a catch can on my Tahoe because it's a Direct Injection motor and the valves get filthy, I actually just had the intake manifold off and had to walnut blast each intake valve! Before/after below on my truck.


The hellcats are port injection so the fuel washes off all the crap on the valves; still on the fence if I will put one on mine. I agree can't hurt though. How much it would help though on a Port Injection I would think it's not completely necessary.

Click to expand...

Well I think they are most effective on vehicles that have forced induction rather than naturally aspirated. My understanding is that the oil gets essentially atomized into the air coming out of the valve cover breather, and the Dodge factory solution was to inject that back into the air entering the supercharger on the engine which takes it to the cylinders to be burned up when the engine runs. It's ultimately the air intake downstream of the hose feeding the oily air and the suoercharger where this oil ends up, leaving a layer of oil on any surface it contacts. I installed my catch can almost immediately after buying the car new, and I emptied it frequently every thousand miles or so. It was never a lot of oil but it was a few ounces at least. That tapered off to less oil per 1000 miles as the motor broke-in to where I only emptied it every 3 months or so. I recently had a bunch of work done to my car and swapped out the Z bracket mounted older design UPR for the newer version UPR catch can with a fender-mount and just checked it for the first time in 2 months since installation last weekend while changing the oil. The catch can had about 1/4 inch of oil in it. I think if you search Youtube there is at least one video I can remember that shows the inside of the engine and supercharger on a Hellcat with and without a catch can. The catch can equipped cars engine is MUCH cleaner, almost looking brand new whereas the other engine has oil varnish in multiple places.