There is no tuning that can be done to the vehicle to increase it's performance. None at all. There is no point in trying.

The same goes for the exhaust. No amount of exhaust modifications will increase it's performance.

Your options are to sell it and get a V8 car, or get a supercharger kit for it. Here's one example: 2018-2021 Chrysler 300 Supercharger System

You can search YouTube for other people that have installed the RIPP supercharger. It's not for the light of heart and will cost over $10k - $6200-ish just for the supercharger kit. That doesn't include installation or PCM tuning, which will require that the PCM be unlocked - on these cars, the PCMs are all locked starting with (I think) the 2015 MY.

IMO, selling the V6 300 and getting a Charger R/T or Scat Pack will be more cost effective.

 

There is no tuning that can be done to the vehicle to increase it's performance. None at all. There is no point in trying.

The same goes for the exhaust. No amount of exhaust modifications will increase it's performance.

Your options are to sell it and get a V8 car, or get a supercharger kit for it. Here's one example: 2018-2021 Chrysler 300 Supercharger System

You can search YouTube for other people that have installed the RIPP supercharger. It's not for the light of heart and will cost over $10k - $6200-ish just for the supercharger kit. That doesn't include installation or PCM tuning, which will require that the PCM be unlocked - on these cars, the PCMs are all locked starting with (I think) the 2015 MY.

IMO, selling the V6 300 and getting a Charger R/T or Scat Pack will be more cost effective.

Not disagreeing with you but I can’t say you’re quite right my guy. I know the pcm and factory tune play a large part in gains Wish I woulda dynoed my car with it completely stock and then now so I can have some type of proof but I know the little I’ve done gained the car some type of horsepower! Not saying I gained 30+hp but definitely something. I raced cars that are rated at 300- 330hp and I slowly pull on em everytime (nothing crazy) for example ive taken a few 370z and their rated 320-370hp from the dealers. So I’m just figuring it’s logical right now and that a tune /pcm unlock will allow the engine to preform at a higher performance rate unrestricting the in/out air flow octane boost and engine reaction causing it to act a bit more quicker and faster then when it came out the factory stock, and no I don’t care for the interior of a challenger/charger and I don’t plane on trading in my car! I plan on paying it of and have some fun with it until I end up blowing the engine up and then ill turn it into a 392 because they don’t make em anymore and it will be a mopar collectible and im not looking to spend a 100k on turning it into a hellaphent so ima stay away from the 6.2 hellcat motor... look ive owned a 02 cammed ls3 vette and a 14 Camaro ss tuned with a CAI, tune and exhaust not including small projects ive hadin between.. so this ain’t new just different and that I’m an individual just trying to figure the 3.6 logic as I’ve never owned a Chrysler/dodge vehicle before But I do know a thing or two not saying I’m a professional that’s all

 

pedal commander may work for you. It may make the car “darty” during daily driving, but I believe it changes the tip in response. 6 cylinder models have to accommodate a lot of different driving styles, and 300s Are probably tuned for softer response for a smoother ride.
best part, they’re cheap enough, and easy to install and remove, if you don’t care for it.

i Do agree with the other responses, but life is short, do what you want while you can. Good luck.

 

I understand what everyone is saying also but building cars ain’t nothing new. Hell they even make a battery car faster then other battery cars 😂 the only thing that’s new is these difficult chip / computers locks making modifications hard to tune/work with.. but with that being said everyone has their own vision and my narrative doesn’t fit into their logic but if there’s a will there’s a way. I think people are just misinformed on what I want I’m not saying ima spend 6k on a supercharger or 4-5k on a cam and block mods.. if I ever do go that far just know I will already have a 6.4 or 6.2 hemi in my driveway and at that point it will be all shits and giggles.. but that’s for the future to tell

 

.. also I’ve cut/deleted the resonators off right after the exhaust (might add the flowmasters 10s and remove the catalytic converters after the tune

The 3.6 doesn't have an external exhaust manifold: it's casted directly within the block.
If you can find a way to bolt a pipe directly to the block like the cats are, I'd like to see it.

 

I know I have been looking into the difficulties of it, and only because if I wanted to go that far but the only way I see it being possible is for a complete Frame drop and that the stock headers would have to be customized (cutting/welded) larger wholes and new pipes that are designed to replicate similar shaping of the stock headers. now completely removing and using aftermarket Headers sounds simpler but lining them up perfectly and attaching them to the block without making a mess is the difficult part. I haven’t got that far into it yet tho just thoughts

 

Do NOT remove the catcons. It's illegal (federal law violation, $2,500 fine) and accomplishes NOTHING except triggering fault codes, a check engine light, and making the computer run a default air/fuel mixture that is NOT optimal for performance, emissions or gas mileage. So you actually hurt the car, as well as pollute more and hurt others' health.
Likewise, your car came with a cold air intake from the factory. Removing that and stuffing an external air filter underhood results in a HOT air intake, which again, hurts performance, gas mileage and emissions.

 

I don’t plan on it (at least right now) Exhaust maybe! and I have a sealed aftermarket air filter box I built to keep engine/radiator heat away from my CAI. plus CAI tube is also heat rapped not including the customized air Duck and front fog vent cover I installed that gets fresh and direct air from the front of the car.. and I’m sure with the right cats and exhaust As More air pushes through the combust engine compressing it into a smoother and quicker exhaust flow exit as it comes out will improve SOME type of power with a tune that’s set up just right.. And that is based off of regular car logic guy..

 

Video from a few years back. How much money do you want to spend? It can be done.

I spent a load of money on an all new 1994 3.8L V6 Mustang purchased new and readily available at the time. The new 5.0 was in short supply and marked up by silly amounts when the SN95 was first released. The car was fully loaded and we even added a powered spoiler moonroof. Mods: tune, CAI, dual exhaust with crossover and turn downs (stock mufflers), roller rockers from a 351 C - different rocker ratios made for a mild cam timing upgrade. Aluminum driveshaft and rear gear change. Shift kit in the 4R70W transmission and also added a high stall converter. Mustang felt noticeably quicker, similar fuel mileage and made us grin every time we drove it.

Did similar mods on a 1998 GT 4.6 and the difference was FAR more profound - minus the roller rockers of course. My last Mustang was a 2005 GT - all new car and motor/transmission - S197. Only mods were a tune and CAI. Far more powerful than my previous Mustangs. Today, we have the S550 Mustangs with the Coyote motor - light years ahead of my SN95 cars and the earlier fox bodies. Time marches on.

Supercharged 3.6L Challenger:

 

The only meaningfull thing you can do unless you go for forced induction or serious engine mods is:

• wheight loss
• nos
• gearing

 

I think this post went way over people’s heads 😆 (not trying to build a hellkitten here) just simply asked what gains has someone PERSONALLY Noted from a tune and pcm install in a 19 3.6l v6.. not supercharger, not cammed not spraying!! Just a 1k dollar tune and pcm unlock in a similar built…

 

It would appear that the answers you got from us have actually gone over your head. You came here for knowledgeable advice, and it's clear you didn't get the answer you wanted.

About all a tune does is bump up the timing, which usually creates destructive pre-ignition. Even a custom tune will only get you to the levels that the stock V6-AWD Charger Pursuit comes with. A Pursuit ECM would not work in your case, because the '19 Pursuit model still used the A580 5-spd auto (incompatible with the 845RE in yours), and the 2021+ models are the 850RE and AWD only (also incompatible with your '19).

Anything that would help noticeably, without voiding the warranty and/or reliability of the car, will cost well over $1000 just in parts. Assuming the parts would be available, not counting labor necessary for most of the larger jobs.

That's really all there is to it. You can get the torch and welder out, and turn it into the Batmobile, but with virtually any newer car, the idea of just bolting on parts-store junk to wake it up a little bit is simply not possible.

We deal with these questions very frequently (and we're used to our replies being dismissed, followed - after some time - by questions from the OP's of how to rectify their hack jobs).
The engineers have these cars optimized for the best street performance they can get away with under the law. That's a simple fact.
The best thing to do, again, is to simply leave it alone and drive it.

 

That offers zero advantage from the stock intake. In fact, it might even scoop water if you encounter a large puddle or flooding, which could hydrolock the engine.

 

It’s keeping hot air out basically as much as the stock filter just with an aftermarket CAI ..I will say tho it has improved engine and coolant temp ever since I did the install, even in high traffic(I live in Houston) my coolant temp don’t run as hot as it use to... but back to the original convo I get it there is “nothing” I can do to make any gains on this car.. and I have multiple vehicles so I don’t take it out when we are expecting hard rain not including the mesh I put on the entrance of the air duck if I do run into debris or slight rain..

 

Here's the big problem - a lot of the tuner shops have gotten fined recently for performing modifications that defeated or eliminated emission controls. Far fewer places will probably be in the tuning business going forward.
Since there are fewer people tuning a Chrysler 300, look for reviews from V6 Charger and Challenger owners of the options you want to follow. If it works for those cars, it will work for yours. But be aware. If it were me I'd want to see dyno or timeslips to back it up. I've never met anyone that doesn't brag about how much their modifications helped according the unscientific "butt dyno".

 

Out here in Texas their everywhere bro especially in Houston it’s just a grey area around the 2018+ 300 that you don’t find any topics on and it’s crazy all because the pcm issue..and if you do there’s no history or backstory just a deadend forum or video. Just like the history on the sprintex a lot of grey area around them with the 300s but jeeps got them all over their 3.6 same with the ripp on the charger/Challenger it just wasent till recent till more people started putting them on their 300s and documenting it

 

You might find a premium fuel tune. The stock calibration is for regular fuel and retards timing if there is a knock. I don't know if anyone has developed one for the 3.6, but it would require an unlocked PCM.

 

I’ve read with that most people suggest a fuel injector and fuel pump swap if they get the trinity 2 premium gas tune with an unlocked pcm definitely was looking into that. very small gains for a couple of grand

 

You need a WB to make any gains with a DS handheld. That would have to be installed in front of the cat.

 

I admire your enthusiasm. Tell us what works.

 

Unfortunately some car models and engines did not get the attention of the aftermarket performance world. From the mid 90's thru the introduction of the "HEMI" Chrysler 3.5 , 3.6 engines ware totally neglected. The PCM's were virtually imposable to crack into to tweak and no one cared. Intrepid/300M/ LH and early LX platforms suffered along with the Prowler. Other manufacturer's such as Ford/GM were easier to wake up like the "good old days" so that is what they concentrated on.
My "anemic" 300M is as it was when new, my 78 ElCamino is a whole 'nother story.

 

I have a 19 Chrysler 300s v6 rwd.
Ive owned the car for over a year and throughout the time I’ve added parts and customize stuff here and there like I removed the fog lights and installed the stock fog light covers but with air vents drilled at 3/4 of an inch throughout the center of the covers allowing more air to the CAI and I also removed and customized the air Duck pointing it straight at the vents and not facing an inch away from the corner of the bumper like they do out the factory so now it’s got straight air access all the way to the Air filter, I’ve also bought a roar pedal commander, A K&N CAI, 80mm ported throttle body and ported lower manifold (haven’t done the top, because I hear there’s really no difference in the factory and ported one because theirs nothing to port) but that’s another topic.. also I’ve cut/deleted the resonators off right after the exhaust (might add the flowmasters 10s and remove the catalytic converters after the tune but I’m still up in the air about it) does anyone have the same set up or similar set up to what ima do but with the Intune 3 (or any tune) / with a pcm set up? And if so how big is the difference in performance? I’d imagine a good amount right?! because so far the stuff I’ve done to my car I can say changed it a lot from when I first got it at the dealer till now. stock R/Ts have problems getting away from me and on a straight away pull I’m right there at their back door not even a car length away (no offense to our hemi Mopar brothers, my buddy doesn’t mind the runs)..
and if so can someone who’s personally bought the tune/pcm themselves or installed their own tunes help me, I’m looking for a solid site. Nothing that’s shady or that haven’t been mastered yet..
Thanks guys

There is no tuning that can be done to the vehicle to increase it's performance. None at all. There is no point in trying.

The same goes for the exhaust. No amount of exhaust modifications will increase it's performance.

Your options are to sell it and get a V8 car, or get a supercharger kit for it. Here's one example: 2018-2021 Chrysler 300 Supercharger System

You can search YouTube for other people that have installed the RIPP supercharger. It's not for the light of heart and will cost over $10k - $6200-ish just for the supercharger kit. That doesn't include installation or PCM tuning, which will require that the PCM be unlocked - on these cars, the PCMs are all locked starting with (I think) the 2015 MY.

IMO, selling the V6 300 and getting a Charger R/T or Scat Pack will be more cost effective.

Don't go with the supercharger wait until next year and for less money you can buy the new Stellanis twin turbo in line 6 and drop right in there... automatic 525 horsepower

 

I just posted another on here still questioning this 😂 because after some runs with more HP/lighter cars the weight to power ratio is not adding up.. did I get a special v6?🤔😂 I’m just saying these mods gotta slightly do something because there should be no way Im beating lighter/More HP cars in my boat..

 

I installed a Chrysler 300c performance chip along with a Diablo Intune i3 on my '18 300s V6, and the gains were definitely noticeable—especially after adjusting for the CAI and throttle body upgrades. Better throttle response, smoother shifts, and a bit more pull throughout the mid-range.