03 Hemi headers...
Thread Starter
Joined: Jun 2006
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03 Hemi headers...
Who makes the best hemi headers??? I wanna get some...does anybody make some that bolt straight up to the fact. exhaust? I also noticed that there are headers just for 03s, and ones for 04-05, and some for 03-06. Whats the diff??
Professional
Joined: Aug 2005
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RE: 03 Hemi headers...
I love my Dynatechs. The kit is complete and install only took a few hours. No hacking or cutting. If my truck doesn't sell I'll be putting them right back on there.
I think the main difference from '03 to the change in the '04 design has something to do with the fuel lines. The '03 kit requires a heat shield and possibly a different midpipe. Don't quote me on that. You're better off calling a knowledgeable vendor or the company itself.
I think the main difference from '03 to the change in the '04 design has something to do with the fuel lines. The '03 kit requires a heat shield and possibly a different midpipe. Don't quote me on that. You're better off calling a knowledgeable vendor or the company itself.
Veteran
Joined: Mar 2006
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RE: 03 Hemi headers...
okay, with headers do you see any mpg gains? i ask because the exhaust and intake combos increase mpg and NOBODY has ever commented on that. I 'm pretty knowledgable so i am well aware that decent headers can deliver as much as 35hp and 40tq but what about mpg?
Thread Starter
Joined: Jun 2006
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RE: 03 Hemi headers...
ORIGINAL: 05_black_beast
I love my Dynatechs. The kit is complete and install only took a few hours. No hacking or cutting. If my truck doesn't sell I'll be putting them right back on there.
I think the main difference from '03 to the change in the '04 design has something to do with the fuel lines. The '03 kit requires a heat shield and possibly a different midpipe. Don't quote me on that. You're better off calling a knowledgeable vendor or the company itself.
I love my Dynatechs. The kit is complete and install only took a few hours. No hacking or cutting. If my truck doesn't sell I'll be putting them right back on there.
I think the main difference from '03 to the change in the '04 design has something to do with the fuel lines. The '03 kit requires a heat shield and possibly a different midpipe. Don't quote me on that. You're better off calling a knowledgeable vendor or the company itself.
Captain
Joined: Apr 2006
Posts: 621
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RE: 03 Hemi headers...
ORIGINAL: nos4fuel
okay, with headers do you see any mpg gains? i ask because the exhaust and intake combos increase mpg and NOBODY has ever commented on that. I 'm pretty knowledgable so i am well aware that decent headers can deliver as much as 35hp and 40tq but what about mpg?
okay, with headers do you see any mpg gains? i ask because the exhaust and intake combos increase mpg and NOBODY has ever commented on that. I 'm pretty knowledgable so i am well aware that decent headers can deliver as much as 35hp and 40tq but what about mpg?
Professional
Joined: Aug 2005
Posts: 228
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From:
RE: 03 Hemi headers...
ORIGINAL: nos4fuel
okay, with headers do you see any mpg gains? i ask because the exhaust and intake combos increase mpg and NOBODY has ever commented on that. I 'm pretty knowledgable so i am well aware that decent headers can deliver as much as 35hp and 40tq but what about mpg?
okay, with headers do you see any mpg gains? i ask because the exhaust and intake combos increase mpg and NOBODY has ever commented on that. I 'm pretty knowledgable so i am well aware that decent headers can deliver as much as 35hp and 40tq but what about mpg?
ORIGINAL: 03SPRAYINHEMI
Did u get the kit with the headers, cats and all? or just the header?
Did u get the kit with the headers, cats and all? or just the header?
Champion
Joined: Aug 2005
Posts: 3,313
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RE: 03 Hemi headers...
Steve Dulcich is one of the best testers out there.
Note that he only found about a 4% hp gain (17 on 376) on full length TTI headers
on an un-muffled 5.7 Hemi on a shaft dyno,
with mufflers it would be at least several horsepower less.
weblink to full article, with additional info on camshafts for 5.7
http://popularhotrodding.com/enginem.../0602phr_hemi/
Note that he only found about a 4% hp gain (17 on 376) on full length TTI headers
on an un-muffled 5.7 Hemi on a shaft dyno,
with mufflers it would be at least several horsepower less.
weblink to full article, with additional info on camshafts for 5.7
http://popularhotrodding.com/enginem.../0602phr_hemi/
