heard the hemi does not like upgrades i have k&n fipk and daul flowmasters lost gas milage and can not tell any difference except noise been told computer does not adjust on its own for more air

The current issue of Mopar Muscle had great power gains on the new Hemi Rams with Edelbrock headers. They have a nice article about it in the current edition(June 2004).

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71 Plymouth Roadrunner 440 Auto. Modified
04 Dodge SRT-4 2.4L DOHC Turbo Intercooled 5-spd. Modified

Finally! I'm trying to mod my HEMI too! I have the dual exhaust, but we ordered it with them so I don't know what it felt like before the upgrade. I saved my money and I'm just waiting for that Kenne Bell Supercharger Kit to come out!

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"Rumpelstiltskin, b!tch!" - Something I screamed while my roomate and his girlfriend were trying to sleep.

Cold-air intakes won't do anything for the Hemi -- the PCM (thanks Amanda! ) won't adjust fuel maps to match any increased airflow. Needs to be reprogrammed, have a piggy-back unit, or just out and out replaced...

- novicius -

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Speed's just a question of money -- how fast do you want to go?

So the Cold Air won't give me any power at all? You may have just saved me $300.

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"Rumpelstiltskin, b!tch!" - Something I screamed while my roomate and his girlfriend were trying to sleep.

Uh, I would like to disagree. There are plenty of private & commercial dyno results that show CAI's make a difference on the Hemi. The IAT is the sensor that is affected by the CAI, if it senses lower temperature air, either due to the origination location or due to increased velocity (less time to warm up), then the PCM advances the timing thus giving more power. Depending on the CAI design, you can greater effect peak horsepower or lower range power. I chose a system the dynoed very well at lower rpms, and the biggest difference in everyday driving is that my transmission doesn't down shift as often looking for more power, & as a result my mileage has gone up.

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04 Ram 1500 SLT RC/SB 4x4 Hemi
BFG G-Force 285/60VR18, MB Motoring Wheels
Corsa Cat-backs, aFe CAI
Line-X, UnderCover Tonneau, Nerf Bars
SS Chrome Grill, 21" Billet Antenna

04 Audi A6 2.7T S-Line - factory tuned to 265hp/280lbs

I have heard of people with '03 Hemi's getting good results, but the ones with 04's are getting nothing. I do not know from experience, but this is what I've been hearing and reading.

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71 Plymouth Roadrunner 440 Auto. Modified
04 Dodge SRT-4 2.4L DOHC Turbo Intercooled 5-spd. Modified

I read ther same thing on this forum, but under a different thread....

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2004 SRT-4 w/Stage 1, M/B Exhaust, BOV, 3-D Taillights, MPx Front STB, $22.97 OCC, K&N Filters. Dodge Forum's FIRST Car of the Month!!!!

They have almost nothing for it! I have been asking in at both dealerships here and nobody has any modifications or knows when any will be in. One mechanic said Dodge is waiting a while before putting anything out.

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"Rumpelstiltskin, b!tch!" - Something I screamed while my roomate and his girlfriend were trying to sleep.

Kenne Bell is doing a blower for the Hemi so they have to have R&D for it. Honestly, unless I can get my truck tuned on a dyno, I'm not touching their blower.

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2004 Black Rumble Bee