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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 10-07-2010, 07:17 PM
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Default Airbox Intake Tube Mod

I took out the airbox to see how the intake tube fits at the fender and noticed that it's a really cramped area. So I decided to add another inlet tube to the bottom of the airbox by attaching 3" aluminum flex pipe using a modified 3" PVC drain grate (cut out the grate). I drilled a 3" hole in the front bottom corner of the airbox then put in the modified drain and slid on the 3" flex tube using a 3" hose clamp to secure it. Next the tubing is routed between the frame and the inner fender liner down to opening that allows
it to be positioned behind the bumper.

The original inlet tube inside diameter is 3.5"x4" or 14 sq inches, the new inlet inside diameter is 2.75" so that's a gain of 5.9 sq. inches. The more air you can feed the engine the better. I bought the materials at Lowes if anyone is interested.





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  #2  
Old 10-07-2010, 07:23 PM
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Nice job. Great report on DIY CAI tube.
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  #3  
Old 10-07-2010, 07:28 PM
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nice work JMR
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Old 10-07-2010, 07:39 PM
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Thats a cool DIY! Thanks for sharing that with everyone and giving a great idea!
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Old 10-07-2010, 10:30 PM
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Thanks. I did the same thing to my Avenger R/T only the hose is routed to pick up ram-air by the fog light.
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Old 10-15-2010, 11:04 PM
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I like it!

Any sealant/fasteners between the fitting and the air box? (Not a dirt issue, just wondering how 'secure' the fit is.)

The 'vent' tube would also work on the 4th Gen Volant CAI.

YEP for REP!

Last edited by HoustonHemi; 10-15-2010 at 11:10 PM.
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Old 10-16-2010, 09:14 AM
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I'll believe it if there are pics? lol
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Old 10-16-2010, 09:17 AM
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That's pretty cool, nice job on that!

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Old 10-26-2010, 06:55 PM
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Any hp pickup or MPG increase??? I thought about putting something like this on mine, also replacing the flex tube from the TB to the airbox!
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Old 11-09-2010, 06:05 PM
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Great idea and writeup, reps for ya.
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