[Aaron001]

so i was reading in the a previous thread about how on the 4.7 headers aren't worth spending the money for them because there is a minimal change and i just want to know if someone could confirm this?

thanks

 

[4.7blaqdak]

I got gibson shorty stainless on my dak and I had better exhaust flow than stock and it helped the sound alot. The flow wasnt that much but you could tell that it was there. I am very pleased with them. :rockwoot:

 

[Super Dave]

They are one of my favorite mods. Even if you pick up 10hp youre not going to "feel" a big improvement. But they do make the exhaust sound quite alot better than with the stock manifolds. Once you start throwing a few mods on the truck they will start to show their true potential.

 

[viperkota]

they will help...but only with certain mods....like don't just to the headers and leave the rest of the exhaust stock

 

[4.7blaqdak]

so i was reading in the a previous thread about how on the 4.7 headers aren't worth spending the money for them because there is a minimal change and i just want to know if someone could confirm this?

thanks

So are you thinking about getting a set of headers or just curious about the flow.

 

[Dj Wolf]

I personally didn't notice any difference in the JBA's i had besides the sound. Track times stayed the same (not even a .01 difference), even after changing the exhaust and intake. personally I don't think they are worth the $ for such little difference.

 

[Bad_banana]

I noticed a different with the gibsons. Better MPG. throttle response, more power througout whole power band, I also did a complete exhaust, headers, to x to mufflers. Might not have got a whole lot of power, but my dakota definatly is distinct by it's sound. I get asked all the time what do I have under the hood, and I have to tell them that heads and cam are still a few months out and they just look at me like damn. I say buy the gibsons and do a FULL exhaust. Please have 70mm tb, intake, and full exhaust,or the headers won't do a whole lot for you.

 

[Aaron001]

4.7blaqdak: So are you thinking about getting a set of headers or just curious about the flow.

well both im curious about the flow to know if its worth getting the headers.i have a bunch of engine mods on the way so i think that i might get them.

 

[Dj Wolf]

well both im curious about the flow to know if its worth getting the headers.i have a bunch of engine mods on the way so i think that i might get them.

well flow with headers is around 3% better than the manifolds.

 

[024.7durango]

Hmmmm I may consider this simply for the sound improvement any recomendation as to brand and what price is to much or not enough?

I have a 2 1/2 inch gibson cat back which will get a magnaflo y pipe fastman 69mm tb and afe cai dded this month. currently looking into installing a remanufactured 02 jeep HO into my durango same year and JTEC fashion

 

[scjeep4.7HO]

Good long tubes are great and well made mid lengths are good too. Shorties are better then manifolds but the margin is slim.

 

[project_dog]

I havent seen Mid or long tube headers for 4.7L.

 

[nascarneil100]

i don't think there are any long or mids of the 4.7

 

[scjeep4.7HO]

There are a few and people have paid BIG money and they are built on the truck/jeep. That's probably why there are not allot of pictures floating around.

 

[project_dog]

Hey scjeep how do you like your magnaflow?

 

[scjeep4.7HO]

I have had 2 different magnaflow setups and many flow masters over the years. I personally like my Magnaflows.

 

[Gbone1113]

Hopefully this thread isn’t dead. It’s obvious they don’t sell headers for the 4.7 Dakota 2008-2011. My question is has anybody try to fit the GEN ll headers on the GEN lll Dakota? Wouldn’t it work if it’s the same motor what’s the big difference??

 

[JeremyJ]

I believe the bolt pattern is different on the two-plug heads. I could be wrong, though. I do know that the manifolds exit the head at a different angle between the two.

 

[andyvh1959]

My 2001 Dak had cracked the stock exhaust manifolds back in 2013. I got a set of Gibson headers ceramic coated, and installed with Stage 8 locking stainless steel header bolts. Been trouble free and sounding good, now at 203,000 miles.

 

[McMopar]

I believe the bolt pattern is different on the two-plug heads. I could be wrong, though. I do know that the manifolds exit the head at a different angle between the two.

100% correct, they are totally different!