Check if this fits your vehicle
When it comes to a 5.7 hemi exhaust manifold upgrade, the material defines the limit of durability. Most generic replacements use thin-walled steel that warps under the intense heat of a Chrysler Hemi 5.7L 6.1L V8 Engine. KAX headers are engineered to withstand the thermal stress and the test of time.
Compatibility is often the biggest headache in aftermarket upgrades. Our Dodge Long Tube Header kit is precision-engineered for the LX and LC platforms. Whether you are driving a 2005-2011 Chrysler 300 or a Dodge Charger, the geometry is optimized to clear steering shafts and suspension components for a professional-grade fit.
Check if this fits your vehicle
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
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For many Chrysler 300, Dodge Charger, and Challenger owners, the factory exhaust manifold is a ticking time bomb. The stock cast iron units are notorious for warping and causing broken manifold bolts, leading to the dreaded "Hemi Tick"—a persistent leaking sound that ruins your driving experience and kills your engine's efficiency.
When searching for a 5.7 hemi exhaust manifold upgrade, you aren't just looking for a repair; you are looking for a revolution. Upgrading to KAX Long Tube Headers is the ultimate 5.7 hemi exhaust manifold solution, designed to eliminate leaks forever while unlocking the true raw power of your V8.
| Feature | OEM Cast Iron Manifold | Shorty Headers | KAX Long Tube Headers |
|---|---|---|---|
| Material | Heavy Cast Iron (Prone to cracking) | Standard Stainless Steel | Premium T-304 Stainless Steel |
| Exhaust Flow | Extremely Low (Turbulent) | Moderate Improvement | Maximum Flow (Mandrel-Bent) |
| Horsepower Gain | 0 HP (Loss due to leaks) | 5 - 10 HP | 15 - 25+ HP (Peak Performance) |
| Sound Profile | Muffled & Restricted | Mildly Deeper | Aggressive Muscle Car Growl |
| Scavenging Effect | None | Weak | Superior (Active Vacuum Pull) |
| Leak Prevention | Poor (High failure rate) | Improved | Ultimate Fix (Thick CNC Flanges) |
Stock manifolds act like a restrictive straw, stifling your Chrysler Hemi V8 engine. Our Long Tube Header design utilizes the scavenging effect—using exhaust pressure pulses to actively pull spent gases out of the cylinders. This results in crisper throttle response, massive torque gains, and an unmistakable roar that lets the world know your Hemi has arrived.
Installing KAX Long Tube Headers does more than just repair a leak—it awakens the true soul of your V8. Your Chrysler Hemi 5.7L 6.1L V8 Engine will no longer be muffled by restrictive factory parts; it will be fully unleashed.
While our Long Tube Header kit is optimized for the 2005-2011 Chrysler 300 and Dodge Charger/Challenger chassis, we recommend the following tips for a professional-grade result:
Don’t let a cracked factory manifold steal your driving pleasure. Choose the KAX performance upgrade and join thousands of Hemi owners in experiencing the dual awakening of premium sound and raw power.
Precision Engineered. Road Tested. Hemi Approved.
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