6.4 tune/exhaust

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Ram20

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Thinking about mods for '20 6.4. Can anyone give me an idea of cost for a tune and headers? Worthwhile?
 

MADDOG

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I tuned my 6.4L truck with a Diablosport InTune programmer with a custom tune. The basic tunes that came with the programmer were OK but the custom tune really woke up the truck. The programmer and the tune came as a package for about $400.

Your stock exhaust manifolds are basically shorty headers and they good a good job. Unless you want long tube headers for a small gain in upper end performance I'd go with opening up the exhaust a bit. I put on a Magnaflow muffler and did a resonator delete. It sounded a lot better and with the custom tune it ran great! The exhaust work was about $250 to provide the new muffler, weld it in place, remove the reso and to fab up the new tailpipe.

14 21.JPG

Here is an in-cab video:

https://www.youtube.com/watch?v=S6seqRKkZMc
 

Nick@GotExhaust

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We can help with headers and a catback. We have some great options. If interested in pricing just send me a message and we can discuss.
 

etdavenport

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I bought a Pulsar from Edge, and it was terrible. The thing kept killing my Throttle in the middle of the road (TPS light would come on and I would lose my peddle completely.) It also kept throwing detonation codes under hard acceleration with every setting. I would not recommend it. All of my reading has basically pointed at the same ting. Get a tuner with a PCM swap and a custom tune, and make sure you are running aT LEAST 91 octane (best we can get here in Kenai, AK).


I have the same questions. Best MODS? Opinions?

These are the mods I was considering. I also plan on swapping the cams and deleting the MDS eventually but for now, I want the most torque increase I can get with minimal modification (anyone with experience with any of these mods, please comment. It will answer OP's questions too):

1. Tuner (not sure which) with an unlocked PCM. I am keeping my old PCM just in case. Especially after what happened with the Pulsar. Hemi fever tune
** Any recommendations on the tuner? Anyone have good experience with anything in particular ?
Eventually
2. Fastman throttle body (not necessarily larger, depends even with the cam, I do not think I really need to go up in size unless the MD delete would benefit)
3. Performance Coil pack with larger gap and copper or iridium plugs. (I just hit 57K miles anyway)

Eventually, I would like to do the following:

4. MDS delete kit with Cam and upgraded lifters.
5. Transmission Valve body upgrade.


Its the Tuner that I really want. I loved the Pulsar power and torque response. It just tried to break my truck. I figure with the tune, and open throttlebody and a better coil pack/plug gap would show some real world torque gains. Thoughts?

2017 Ram 2500 Bighorn w/ 3" lift
4.56 gears, OEM powerwagon lockers (installed in a big horn),
35x12.5R18 Grabbers
MBRP 4" high flow exhaust and a AEF high flow air filter.
De-badging it this next week. =]
 

Wild one

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I bought a Pulsar from Edge, and it was terrible. The thing kept killing my Throttle in the middle of the road (TPS light would come on and I would lose my peddle completely.) It also kept throwing detonation codes under hard acceleration with every setting. I would not recommend it. All of my reading has basically pointed at the same ting. Get a tuner with a PCM swap and a custom tune, and make sure you are running aT LEAST 91 octane (best we can get here in Kenai, AK).


I have the same questions. Best MODS? Opinions?

These are the mods I was considering. I also plan on swapping the cams and deleting the MDS eventually but for now, I want the most torque increase I can get with minimal modification (anyone with experience with any of these mods, please comment. It will answer OP's questions too):

1. Tuner (not sure which) with an unlocked PCM. I am keeping my old PCM just in case. Especially after what happened with the Pulsar. Hemi fever tune
** Any recommendations on the tuner? Anyone have good experience with anything in particular ?
Eventually
2. Fastman throttle body (not necessarily larger, depends even with the cam, I do not think I really need to go up in size unless the MD delete would benefit)
3. Performance Coil pack with larger gap and copper or iridium plugs. (I just hit 57K miles anyway)

Eventually, I would like to do the following:

4. MDS delete kit with Cam and upgraded lifters.
5. Transmission Valve body upgrade.


Its the Tuner that I really want. I loved the Pulsar power and torque response. It just tried to break my truck. I figure with the tune, and open throttlebody and a better coil pack/plug gap would show some real world torque gains. Thoughts?

2017 Ram 2500 Bighorn w/ 3" lift
4.56 gears, OEM powerwagon lockers (installed in a big horn),
35x12.5R18 Grabbers
MBRP 4" high flow exhaust and a AEF high flow air filter.
De-badging it this next week. =]
Dan aka Fastman is basically retired now,and is only doing throttle bodies to catch up to his existing orders,and then i think he will be done,he's pushing 70 now. Your stock coil packs are better then most after market coils,so save your money on them.Copper plugs are more efficient then irridium plugs,but you'll want to change them out roughly every 30,000 miles ,and contary to Maddogs post about long tubes,they actually generate more torque then a stock manifold or shorty header,and unless they've changed the factory exhaust manifolds lately,you're 6.4 should have basically a peanut port cast iron log manifold,not a shorty header manifold. Tuner i'd look at HP instead of Diablo with a custom tune from somebody like Ryan Hogan /Flying Ryan Tuning or Mark Rogee ,Rogee seems to be specializing in the heavy duty truck tunes more then most tuners these days.
 

etdavenport

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I spoke with Dan at Fastman the same day I made the last post. He is still doing limited work if you call, but he has shut the website down. I have a TB on the way! =]. Dan also agreed that the coil packs were a waste of money for these trucks.

The plan now is to buy the tuner and get a custom tune to back off the torque management just a hair or to use their pre canned tune and simply advance the timing slightly. At $400 a custom tune.... i don't need much, just enough to get that initial hesitation gone. Even with lower gears, the low end hesitation is annoying. It is my understanding the tuner should fix some of that hesitation (or I can adjust for it with the timing settings) and will also allow me to turn off the MDS without hitting the tow haul button or turning on the ERS every time I get in the truck. If the Trinity is anything lie the Pulsar was, it doesn't actually turn the MDS off, it just turns on the ERS system so the truck doesn't use the MDS. I did like that function of the Pulsar.

Damn expensive solution ... These tuners used to run $300... The cost is ridiculous considering what you get. I wouldn't be dropping the $1500 if it wasn't so necessary for the cam swap. And I definitely plan on swapping the cam/lifters (MDS delete) when I get a chance. I could have lined my bed for less =[
 

Riccochet

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I don't think there are any tuning options for the 5th gen 6.4's. As far as I know the ECU has not been unlocked yet.

This is the 5th gen sub forum. If you have a 4th gen (09-18) you're better served asking in that sub forum.
 

DILLIGAF

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HP Tuner is the only way to go.

Diablo canned tunes are a joke at best. and Diablo dosent allow you to actually change anything yourself. So you're stuck emailing your tuner for any little tweaks you want to do... Its super lame.
 

Riccochet

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HP Tuner is the only way to go.

Diablo canned tunes are a joke at best. and Diablo dosent allow you to actually change anything yourself. So you're stuck emailing your tuner for any little tweaks you want to do... Its super lame.

There are no options to tune a 2019-2022 Ram with the 6.4. They have not unlocked the PCM yet. No one offers an unlocked PCM for 5th gen 6.4's.

Best we can do is exhaust, throttle body, intake.....but there really are no gains other than how it sounds. Basically yeeting money away for nothing.
 

etdavenport

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There are no options to tune a 2019-2022 Ram with the 6.4. They have not unlocked the PCM yet. No one offers an unlocked PCM for 5th gen 6.4's.

Best we can do is exhaust, throttle body, intake.....but there really are no gains other than how it sounds. Basically yeeting money away for nothing.
Crap. This was meant to go in the 4th gen section. Need an admin to bump the thread over.
 

4xdad

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Magnaflo d-fit pulsar tuner resonator delete sounds good and no problems
 

eljefe

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Over the weekend I installed the Pulsar and holy crap did it wake up the 6.4! Such an easy install, and updating for tires and axle ratio was a piece of cake. I also did the MBRP single catback exhaust helped the truck breath easier as well. Don't do the CAI as our trucks are already great in this area stock.
 

KKBB

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Over the weekend I installed the Pulsar and holy crap did it wake up the 6.4! Such an easy install, and updating for tires and axle ratio was a piece of cake. I also did the MBRP single catback exhaust helped the truck breath easier as well. Don't do the CAI as our trucks are already great in this area stock.
Nice!!! Are there different power levels on the pulsar? If so, what level have you been running?
 

4xdad

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Yes there’s a bunch of tunes I usually run the stock tune mds shut off they recommend 92 octane for the two performance tunes
 
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