Deleting the 6.7: A guide to making it run right! (4th Gen Section) UPDATED 6-6-11
10-31-2012, 02:54 PM
#181
Thats MR Hoss to you buddy!
Okay, so I just read this entire thread and have come to the conclusion that I need the following items for my new 2012...
- Either the H&S XRT Pro or H&S Black Maxx
- Either the H&S EGR Delete Kit or H&S EGR / Cooler Delete Kit (I don't know what the cooler is or the benefit of deleting it) - But this is optional, right? I can leave the EGR/Cooler in place if I want?
- Downpipe and delete pipe. Any recommendations here? I'm okay with utilizing the factory muffler since it's straight through and since I already have a nice 5" chrome tip on the back courtesy of Mopar, so I'm thinking I can just get a downpipe and delete pipe and save some money.
Questions:
1. All of this will give me more HP, more torque and better fuel mileage. Yes?
2. Since I'm doing this should I also change the air intake?
3. Do the 4th gen turbos have silencer rings that can be removed like my 3rd gen did?
4. How does all of this affect the exhaust brake? I've never had an exhaust brake before this truck and I'm not sure where it's located in the line or how it works.
- Either the H&S XRT Pro or H&S Black Maxx
- Either the H&S EGR Delete Kit or H&S EGR / Cooler Delete Kit (I don't know what the cooler is or the benefit of deleting it) - But this is optional, right? I can leave the EGR/Cooler in place if I want?
- Downpipe and delete pipe. Any recommendations here? I'm okay with utilizing the factory muffler since it's straight through and since I already have a nice 5" chrome tip on the back courtesy of Mopar, so I'm thinking I can just get a downpipe and delete pipe and save some money.
Questions:
1. All of this will give me more HP, more torque and better fuel mileage. Yes?
2. Since I'm doing this should I also change the air intake?
3. Do the 4th gen turbos have silencer rings that can be removed like my 3rd gen did?
4. How does all of this affect the exhaust brake? I've never had an exhaust brake before this truck and I'm not sure where it's located in the line or how it works.
10-31-2012, 03:07 PM
#182
Administrator / Severe Concussion Aficionado
Thread Starter
Okay, so I just read this entire thread and have come to the conclusion that I need the following items for my new 2012...
- Either the H&S XRT Pro or H&S Black Maxx
The BlackMaxx hasnt been available for some time. I believe they had issues with the screen manufacturer, so a used one is the only option right now. The MiniMaxx has the same tuning options, just a bit smaller screen.
- Either the H&S EGR Delete Kit or H&S EGR / Cooler Delete Kit (I don't know what the cooler is or the benefit of deleting it) - But this is optional, right? I can leave the EGR/Cooler in place if I want?
The cooler delete cleans up a ton of room in the engine bay. It also is a preventative measure for it the cooler would happen to crack, no hydrolocking. Not a common issue, but, the delete is cheap so.......
- Downpipe and delete pipe. Any recommendations here? I'm okay with utilizing the factory muffler since it's straight through and since I already have a nice 5" chrome tip on the back courtesy of Mopar, so I'm thinking I can just get a downpipe and delete pipe and save some money.
4" into the stock muffler would be a nice setup with a decent tone, although rather quiet, and no drone.
Questions:
1. All of this will give me more HP, more torque and better fuel mileage. Yes?
Yes, Yes, and Yes
2. Since I'm doing this should I also change the air intake?
Unless you are looking for a lil more whistle out of the turbo, Id leave it alone. The stock box flows rather well, and will move more than enough air for the mods you have in mind. A good drop in filter would be the way to go.
3. Do the 4th gen turbos have silencer rings that can be removed like my 3rd gen did?
They do have a silencer ring, but, its riveted in and require a little work to remove it. Its also thought that removal is not wise, because it seems as if its integral to airflow into the turbo. No definitive answer for yeah or nah.
4. How does all of this affect the exhaust brake? I've never had an exhaust brake before this truck and I'm not sure where it's located in the line or how it works.
Exhaust brake will be affected. It will function just as good as stock, but not have any issues with sooting up. Run that thing each and every time you get in the truck to keep the slider nozzle working and prevent any sticking issues. The exhaust brake is built right into the turbo and it uses a sliding nozzle system along with actually adjusting the pitch of the vanes for braking functions. More in depth explanation here
- Either the H&S XRT Pro or H&S Black Maxx
The BlackMaxx hasnt been available for some time. I believe they had issues with the screen manufacturer, so a used one is the only option right now. The MiniMaxx has the same tuning options, just a bit smaller screen.
- Either the H&S EGR Delete Kit or H&S EGR / Cooler Delete Kit (I don't know what the cooler is or the benefit of deleting it) - But this is optional, right? I can leave the EGR/Cooler in place if I want?
The cooler delete cleans up a ton of room in the engine bay. It also is a preventative measure for it the cooler would happen to crack, no hydrolocking. Not a common issue, but, the delete is cheap so.......
- Downpipe and delete pipe. Any recommendations here? I'm okay with utilizing the factory muffler since it's straight through and since I already have a nice 5" chrome tip on the back courtesy of Mopar, so I'm thinking I can just get a downpipe and delete pipe and save some money.
4" into the stock muffler would be a nice setup with a decent tone, although rather quiet, and no drone.
Questions:
1. All of this will give me more HP, more torque and better fuel mileage. Yes?
Yes, Yes, and Yes
2. Since I'm doing this should I also change the air intake?
Unless you are looking for a lil more whistle out of the turbo, Id leave it alone. The stock box flows rather well, and will move more than enough air for the mods you have in mind. A good drop in filter would be the way to go.
3. Do the 4th gen turbos have silencer rings that can be removed like my 3rd gen did?
They do have a silencer ring, but, its riveted in and require a little work to remove it. Its also thought that removal is not wise, because it seems as if its integral to airflow into the turbo. No definitive answer for yeah or nah.
4. How does all of this affect the exhaust brake? I've never had an exhaust brake before this truck and I'm not sure where it's located in the line or how it works.
Exhaust brake will be affected. It will function just as good as stock, but not have any issues with sooting up. Run that thing each and every time you get in the truck to keep the slider nozzle working and prevent any sticking issues. The exhaust brake is built right into the turbo and it uses a sliding nozzle system along with actually adjusting the pitch of the vanes for braking functions. More in depth explanation here
Okie Dokie MR Hoss. Hope that helped.
10-31-2012, 03:27 PM
#183
Thats MR Hoss to you buddy!
That helps a lot! Thanks!!
One more questions...
Any specific recommendations on who the good manufacturers are for a downpipe and delete pipe? I had an MBRP on my 3rd Gen but it appears they now only sale DPF back systems.
You say "rather quiet". With the stock muffler being a straight through design does it really do that much muffling? I don't want it to be crazy loud, but I do want to hear it.
One more questions...
4" into the stock muffler would be a nice setup with a decent tone, although rather quiet, and no drone.
You say "rather quiet". With the stock muffler being a straight through design does it really do that much muffling? I don't want it to be crazy loud, but I do want to hear it.
10-31-2012, 03:33 PM
#184
Administrator / Severe Concussion Aficionado
Thread Starter
That helps a lot! Thanks!!
One more questions...
Any specific recommendations on who the good manufacturers are for a downpipe and delete pipe? I had an MBRP on my 3rd Gen but it appears they now only sale DPF back systems.
You say "rather quiet". With the stock muffler being a straight through design does it really do that much muffling? I don't want it to be crazy loud, but I do want to hear it.
One more questions...
Any specific recommendations on who the good manufacturers are for a downpipe and delete pipe? I had an MBRP on my 3rd Gen but it appears they now only sale DPF back systems.
You say "rather quiet". With the stock muffler being a straight through design does it really do that much muffling? I don't want it to be crazy loud, but I do want to hear it.
I had my 08 set up that way, down pipe and delete pipe into the factory muffler. You could barely hear it in the cab, and it was just loud enough outside the cab to know it was deleted. The VGT really cuts down on the sound. My truck, with the 2nd gen mani and the S467 is scare small children loud.
But sounds soooooooo good I cant bring myself to muffle it.
10-31-2012, 04:13 PM
#185
Thats MR Hoss to you buddy!
So, since it appears you're the resident expert, I was just browsing the DPR Online Store (which I sort of forgot about) and came across the H&S Turbo Back 5" DPF Delete with No Muffler.
Two questions:
1) How loud do you suppose that would be both inside and outside of the truck? I want it to sound good but I don't want it to be obnoxious.
2) Is the outlet on the turbo a 5" outlet? I assumed it was 4" like my 3rd Gen was. And if it is 4" does it really benefit anything to go a 5" system?
Two questions:
1) How loud do you suppose that would be both inside and outside of the truck? I want it to sound good but I don't want it to be obnoxious.
2) Is the outlet on the turbo a 5" outlet? I assumed it was 4" like my 3rd Gen was. And if it is 4" does it really benefit anything to go a 5" system?
10-31-2012, 08:44 PM
#186
Administrator / Severe Concussion Aficionado
Thread Starter
The 5" sounds really good, its deeper than the 4" and makes the 6.7 sound, well, mean.
I find even with the 5" its not as loud as a CR 5.9 is with a straight pipe. However, when I had the full 5" on mine, before the 2nd gen mani swap, I had bad drone at around 2200 rpms. Depending on the gear ratio/tires etc setup you have this may not be much of an issue, but with my truck, 70mph on the interstate would make you want to beat your head on the steering wheel and jump out of the window.
The outlet is a 4", general consensus is a 5" exhaust is not NEEDED until you get above 600hp or so. Most do it just for the sound.
I find even with the 5" its not as loud as a CR 5.9 is with a straight pipe. However, when I had the full 5" on mine, before the 2nd gen mani swap, I had bad drone at around 2200 rpms. Depending on the gear ratio/tires etc setup you have this may not be much of an issue, but with my truck, 70mph on the interstate would make you want to beat your head on the steering wheel and jump out of the window.
The outlet is a 4", general consensus is a 5" exhaust is not NEEDED until you get above 600hp or so. Most do it just for the sound.
11-01-2012, 04:15 AM
#187
Thats MR Hoss to you buddy!
Okay. Thanks for the info. I'll probably start with the economy version and just get a 4" downpipe and delete pipe and keep the factory muffler and tailpipe in place. If that doesn't give me what I'm looking for then I'll look at replacing the entire system.
Do you (or anyone) know if our factory exhaust is stainless or aluminized? I'm assuming it's 4" aluminized. If so I don't want to get a SS delete pipe and have dissimilar metals problems.
Thanks for the help. Didn't realize I'd be so full of questions.
Do you (or anyone) know if our factory exhaust is stainless or aluminized? I'm assuming it's 4" aluminized. If so I don't want to get a SS delete pipe and have dissimilar metals problems.
Thanks for the help. Didn't realize I'd be so full of questions.
11-01-2012, 09:26 AM
#188
Administrator / Severe Concussion Aficionado
Thread Starter
Pretty sure the factory system is aluminized. You could always start with the setup into the factory muffler, then delete the factory muffler for more. And if that dont get you what your looking for, sell the 4" stuff for 5"
Hang on to the factory stuff though, its ludicrously expensive to replace.
Hang on to the factory stuff though, its ludicrously expensive to replace.
11-01-2012, 09:53 AM
#189
Thats MR Hoss to you buddy!
Good point on hanging onto the factory stuff. I intend to do that, but I certainly appreciate the reminder.
Wife: Why do you have a bunch of spare parts from your truck laying in the garage?
Hoss: In case I need to make my truck legal again.
Wife: Why do you have a bunch of spare parts from your truck laying in the garage?
Hoss: In case I need to make my truck legal again.
11-02-2012, 07:41 AM
#191
Administrator / Severe Concussion Aficionado
Thread Starter
Mind heat cycles and dont run it like you are trying to kill it, and you would more than likely have no issues.
11-02-2012, 11:59 AM
#192
Thats MR Hoss to you buddy!
Any good vendor recommendations to buy a Flo-Pro downpipe and DPR delete pipe? I'll probably get the H&S XRT and EGR/Cooler deleted kit from the DPR store, but they (we?) don't have Flo-Pro.
11-02-2012, 12:00 PM
#193
Administrator / Severe Concussion Aficionado
Thread Starter
What ever it is that Top cant get ya, the 2nd choice, hands down, is Rollin Smoke Diesel.
www.rollinsmokediesel.com
And give top a holler, or PM him, lot of stuff that he has that isnt listed on the store.
www.rollinsmokediesel.com
And give top a holler, or PM him, lot of stuff that he has that isnt listed on the store.