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Installing an AFE Power Exhaust on Your Charger: Complete Guide for Maximum Sound and Performance

Upgrading the exhaust system on a Dodge Charger is one of the most rewarding modifications a driver can make. The factory exhaust is designed to meet noise regulations and cost constraints, leaving significant performance and acoustic potential untapped. An AFE Power exhaust system changes that equation entirely. It replaces restrictive factory components with mandrel-bent tubing, high-flow mufflers, and precision-engineered resonators to unlock horsepower gains, reduce weight, and deliver a tone that matches the Charger's aggressive character.

Whether you drive a V6 or a ferocious V8 Hellcat, an AFE Power exhaust transforms the driving experience. This guide walks through every phase of the installation process—from gathering the right tools to the final test drive. You will learn how to remove the factory system safely, install the AFE Power components with proper alignment, and perform post-installation checks that ensure leak-free operation and optimal sound. By the end, you will have the confidence and knowledge to complete the job in your own garage with professional-grade results.

Why Upgrade to an AFE Power Exhaust?

Before jumping into the installation, it helps to understand exactly what makes AFE Power exhaust systems stand out. AFE Power, also known as aFe Power, is a California-based manufacturer that specializes in high-performance intake and exhaust systems for American muscle cars, trucks, and SUVs. Their exhaust systems are engineered with specific attention to flow dynamics, material quality, and acoustic tuning.

The benefits of installing an AFE Power exhaust on a Charger include:

  • Increased Horsepower and Torque – By reducing backpressure and improving exhaust gas flow, the engine can breathe more freely. Many AFE Power cat-back systems deliver gains of 10–20 horsepower at the wheels on V8 models, with corresponding torque improvements across the mid-range.
  • Weight Reduction – AFE Power systems often replace heavy factory mufflers and resonators with lightweight stainless steel or titanium components. Depending on the specific system, you can shed anywhere from 15 to 40 pounds of unsprung weight.
  • Superior Sound Quality – The exhaust note becomes deeper, more aggressive, and more refined. AFE Power engineers tune the sound to eliminate drone while maintaining a throaty roar under acceleration. The result is a soundtrack that matches the Charger's muscular personality without becoming fatiguing on long highway drives.
  • Durability – Constructed from mandrel-bent 304 stainless steel or T-304 stainless steel, AFE Power exhausts resist corrosion and cracking far better than factory aluminized steel. Ceramic-coated tips add an extra layer of protection and visual appeal.
  • Bolt-On Installation – Most AFE Power exhaust systems are designed as direct bolt-on replacements. This means no cutting, welding, or fabrication is required. The system uses factory hanger locations and flanged connections for a straightforward install.

Tools and Materials Needed

Having the right tools on hand before you begin saves time and prevents frustration. While the installation is straightforward, certain fasteners can be stubborn, especially on older vehicles or those exposed to road salt and moisture. Below is the complete list of tools and materials you will need.

Essential Tools

  • Socket and Ratchet Set – A 3/8-inch drive set with metric and SAE sockets ranging from 8mm to 19mm. A 1/2-inch drive breaker bar is helpful for stubborn bolts.
  • Wrench Set – Combination wrenches in the same size range as your sockets. These are essential for reaching tight spaces where a ratchet won't fit.
  • Torque Wrench – A quality torque wrench capable of reading between 20 and 100 ft-lb. Proper torque is critical to prevent exhaust leaks and ensure clamp integrity.
  • Jack and Jack Stands – A hydraulic floor jack rated for at least 3 tons, paired with two jack stands rated for at least 3 tons each. Never work under a vehicle supported only by a jack.
  • Penetrating Oil – A spray like WD-40, PB Blaster, or Liquid Wrench. Apply to exhaust bolts and hanger hardware 15–30 minutes before removal to break corrosion.
  • Safety Glasses – Protect your eyes from falling rust, debris, and drips of penetrating oil.
  • Mechanic's Gloves – Exhaust systems are sharp and hot. Cut-resistant gloves with good dexterity are recommended.
  • Exhaust Hanger Removal Tool – A dedicated tool or a set of long-nose pliers with a 90-degree bend. This makes removing rubber hangers much easier.
  • Rubber Mallet – Useful for gently persuading stubborn exhaust sections to separate without damaging flanges.
  • Flashlight or Work Light – Good lighting is essential when working under the vehicle.

Materials

  • AFE Power Exhaust System – Complete kit with all pipes, mufflers, resonators, clamps, and hardware. Verify that the kit matches your Charger's engine and model year before beginning.
  • New Exhaust Gaskets – While many AFE Power kits include gaskets for the header-to-mid-pipe connection, it is wise to have spare gaskets on hand in case the originals are damaged during removal.
  • Anti-Seize Compound – Apply to bolt threads and slip-joint connections to prevent future corrosion and ease future disassembly.
  • Rubber Hangers (Optional) – If your factory hangers are cracked or stretched, replacing them ensures the new exhaust hangs correctly and does not vibrate against the underbody.

Preparation Steps

Proper preparation is the foundation of a smooth installation. Rushing this phase can lead to skipped steps, loose connections, and potential safety hazards. Follow each step in order.

Vehicle Positioning and Safety

Park the Charger on a level, solid surface such as a concrete garage floor or asphalt driveway. Engage the parking brake firmly and chock the front wheels to prevent any unintended movement. If the vehicle has an automatic transmission, shift it into Park. For manual transmissions, leave it in first gear or Reverse with the parking brake engaged.

Battery Disconnection

Disconnect the negative battery terminal using a 10mm wrench or socket. This prevents any accidental electrical shorts while working near the vehicle's underbody and eliminates the risk of the engine accidentally starting during the installation. Wrap the disconnected terminal in a shop rag or place it where it cannot contact the battery post.

Cool-Down Period

If the vehicle has been driven recently, allow the exhaust system to cool completely. Exhaust components can reach temperatures exceeding 500°F during operation. Even after the engine is off, the catalytic converters and mufflers retain heat for 30–60 minutes. Waiting until the system is cool to the touch prevents burns and makes handling components safer.

Lifting the Vehicle

Position the floor jack under the rear differential housing or the designated rear jacking point on the frame. Raise the vehicle until the rear wheels are about 6–8 inches off the ground, then place jack stands under the rear frame rails or axle housing on both sides. Lower the jack gently so the vehicle's weight rests fully on the stands. Shake the vehicle lightly to confirm it is stable before crawling underneath.

Undercarriage Inspection

Once the vehicle is safely elevated, take a few minutes to inspect the underside. Look for signs of rust, corrosion, or damage on the factory exhaust system. Pay special attention to the flange bolts at the catalytic converter connection and the hanger brackets. If rust is severe, apply penetrating oil and let it soak while you gather your tools. Also check that there is adequate clearance for the new exhaust system—most AFE Power kits are designed to match factory routing, but it's worth confirming that no aftermarket components (such as a lowered suspension or aftermarket sway bar) will interfere.

Removing the Old Exhaust System

Removing the factory exhaust is the most labor-intensive part of the installation. Take your time, work methodically, and do not force any connections. Forcing a stuck bolt can break it, turning a simple job into a headache involving drill extraction or replacement of exhaust flanges.

Step 1 – Remove Exhaust Hanger Hardware

Locate the rubber hangers that support the exhaust along its length. There are typically four to six hangers on a Charger, positioned at the rear mufflers, mid-pipe, and near the resonators. Use the hanger removal tool or long-nose pliers to compress the rubber hanger and slide it off the metal hanger stud. You can also spray a small amount of silicone lubricant on the rubber to make removal easier. If any hangers are damaged or excessively stretched, note their location so you can replace them during reassembly.

Step 2 – Unbolt Flange Connections

Starting at the front of the system, locate the flange where the exhaust connects to the catalytic converters. There are usually two bolts (sometimes studs with nuts) on each flange. Apply penetrating oil if needed. Use a ratchet with a deep socket or a wrench to loosen and remove these fasteners. If they are extremely tight, use a breaker bar or a ratchet with a length of pipe for additional leverage. Be careful not to strip the bolt heads. If a bolt feels like it is rounding off, stop and use a six-point socket or a bolt extractor set.

Step 3 – Separate the Exhaust Sections

Once all flange bolts are removed, the exhaust system may still be held together by slip joints or clamp connections. Slide the clamps loose or use a rubber mallet to tap the sections apart. If a slip joint is stubborn, apply penetrating oil and tap around the joint lightly with a hammer. Do not hit the pipe hard enough to dent it; patience and steady tapping will free the connection.

Step 4 – Lower and Remove the Factory Exhaust

With all hangers released and flanges disconnected, the exhaust system should be free. Carefully lower it from the vehicle. You may need assistance if the system is heavy, particularly on V8 models with large mufflers. Work from the rear forward, guiding the exhaust around the rear axle and lower control arms. Once the system is on the ground, move it out of the work area. Inspect the factory exhaust for any damage that might indicate a pre-existing issue, such as a broken hanger bracket or a dented pipe.

Step 5 – Inspect and Clean Mounting Points

With the old exhaust removed, take time to clean the flange surfaces using a wire brush or abrasive pad. Remove any remaining gasket material, rust flakes, or debris. Wipe the hanger studs clean and inspect them for corrosion or bending. If any hanger studs are damaged, now is the time to replace them. Clean the threads of the flange bolts or studs to ensure smooth installation of the new hardware.

Installing the AFE Power Exhaust

With the factory system removed and the undercarriage prepped, you are ready to install the AFE Power exhaust. Work carefully to ensure proper alignment, which is critical to achieving the best sound and preventing vibrations or rattles.

Step 1 – Test Fit the Components

Before tightening anything, lay out all the AFE Power exhaust components on the ground. Identify each pipe section, muffler, and resonator according to the kit's instruction sheet. Lift the main mid-pipe section into position and loosely attach it to the catalytic converter flanges using the supplied bolts and new gaskets. Do not tighten these bolts yet. Slide the rear section with the mufflers and tips into place, connecting it to the mid-pipe with the provided slip-joint clamps. The goal is to get the entire system hung loosely so you can adjust alignment before locking anything down.

Step 2 – Align the Exhaust for Optimal Fitment

With all sections loosely connected, adjust the position of each pipe so it sits centered in the vehicle's tunnel and does not contact the underbody, fuel lines, brake lines, or suspension components. Pay close attention to the exhaust tips at the rear. They should be centered in the bumper cutouts and parallel to the ground. Adjust the hangers and slip joints as needed to achieve a symmetrical appearance. Most AFE Power systems include adjustable hanger brackets that allow fine-tuning of tip position.

Step 3 – Tighten All Connections to Manufacturer Specifications

Once alignment is satisfactory, begin tightening all fasteners in a logical order from front to back. Use a torque wrench to tighten the flange bolts at the catalytic converters to the specification provided in the AFE Power instruction manual (typically 30–40 ft-lb for 10mm bolts). Tighten the slip-joint clamps evenly to prevent the pipe from rotating or cocking. Finally, secure the hanger bolts and brackets. Over-tightening clamps can deform the pipes or strip threads, so follow the manufacturer's torque values precisely.

Step 4 – Install Exhaust Tips (If Separate)

If your AFE Power kit comes with separate exhaust tips, slide them onto the tailpipes and tighten the set screws or clamps. Position the tips so they are flush with the bumper and even with each other. Step back and check the appearance from multiple angles before final tightening. Apply a small amount of anti-seize to the tip set screws to prevent seizing from heat cycling.

Step 5 – Final Under-Vehicle Inspection

With everything tightened, crawl under the vehicle and perform a thorough inspection. Wiggle each hanger to confirm it is seated properly. Check that all clamps are secure and that no pipes are contacting the chassis, drivetrain, or suspension. Turn the steering wheel lock-to-lock (with the engine off) and look for any interference with the exhaust. Also check that the exhaust does not hang lower than the lowest point of the vehicle's frame—this prevents damage from road debris and speed bumps.

Post-Installation Checks and Testing

The installation is not complete until you have verified proper operation. Skipping these checks can lead to exhaust leaks, drone, or even damage to the new system.

Electrical and Battery Reconnection

Reconnect the negative battery terminal and tighten it securely. Double-check that the terminal is clean and free of corrosion. Start the engine and let it idle. The first startup after an exhaust change may sound different—this is normal as the system settles into its acoustic profile.

Sound and Leak Inspection

With the engine at idle, listen for any hissing, tapping, or ticking sounds that indicate an exhaust leak. A leak often sounds like a faint puffing noise that increases in tempo with engine speed. Have a helper place a hand near each flange and joint while you listen—you may feel puffs of exhaust gas. If you suspect a leak, tighten the affected bolts or clamps slightly and re-check. Minor leaks can often be stopped by tightening, but if the leak persists, you may need to remove the joint and reinstall it with fresh gasket sealant.

Drive Test and Sound Evaluation

Take the Charger for a 10–15 minute test drive on varied roads including city streets, highway, and curves. During the drive, evaluate the following:

  • Idle Sound – The exhaust should have a deep, smooth idle without excessive rumble or resonance in the cabin.
  • Acceleration Sound – Under hard throttle, the exhaust should growl aggressively without becoming harsh. Listen for any metallic rattling that might indicate a loose component.
  • Cruising Sound – At highway speeds, the exhaust should be quiet enough for comfortable conversation. Excessive drone (a low-frequency boom) at steady throttle is a sign of poor fitment or a design mismatch—though AFE Power systems are engineered to minimize drone, it is worth verifying.
  • Tip Temperature and Clearance – After the drive, use an infrared thermometer to check the temperature of the exhaust tips. Uneven temperatures between tips can indicate an internal obstruction or misalignment. Also check that the tips have not shifted position during the drive.

Retighten After Heat Cycling

Exhaust systems expand and contract with heat. After the first drive, allow the exhaust to cool completely, then re-check all bolts and clamps for tightness. This second tightening compensates for thermal expansion and ensures a lasting seal. Apply a final torque check to the flange bolts and hanger fasteners.

Performance Expectations and Sound Characteristics

Understanding what to expect from an AFE Power exhaust helps you appreciate the upgrade and identify any potential issues early. Performance improvements vary by engine and specific kit, but general benchmarks are well documented.

Horsepower and Torque Gains

On a 5.7L HEMI V8, a cat-back AFE Power exhaust typically adds 10–15 horsepower and 10–15 ft-lb of torque at the rear wheels. The 6.4L HEMI sees slightly larger gains, often 15–20 horsepower. Supercharged Hellcat models benefit from reduced backpressure and can gain 15–25 horsepower on a cat-back system alone, with even greater gains when paired with an intake and tune. These gains are most noticeable in the mid-to-upper RPM range, where the engine is freed from restrictive factory muffling.

Sound Profile by Engine

  • 3.6L Pentastar V6 – The sound becomes more aggressive and sporty, with a deeper tone than stock. It will not sound like a V8, but the upgrade eliminates the raspy note of the factory exhaust and replaces it with a refined, throaty character.
  • 5.7L HEMI V8 – This is where AFE Power systems truly shine. The sound is deep and authoritative at idle, and it opens into a raw, muscular roar under full throttle. Highway cruising remains comfortable with minimal drone.
  • 6.4L HEMI V8 – The larger displacement delivers an even deeper, more aggressive tone. The idle has a distinct rumble, and wide-open throttle produces a ferocious snarl without becoming obnoxious.
  • 6.2L Supercharged HEMI (Hellcat) – The supercharger whine combines with the exhaust note for an unmistakable assault on the senses. AFE Power systems on Hellcats are designed to manage the immense exhaust volume while maintaining drivability.

Drone and Volume Considerations

AFE Power invests significant engineering effort into drone cancellation. Their systems incorporate Helmholtz resonators or tuned chambers that cancel specific frequency bands responsible for cabin drone. On most Charger models, the result is a system that is loud enough to be thrilling under acceleration but quiet enough for daily commuting. If you desire a more aggressive sound, AFE Power offers systems with optional straight-through mufflers or cutouts for track use.

Maintenance Tips for Longevity

An AFE Power exhaust is built to last, but a few simple maintenance practices extend its life and preserve its appearance.

Regular Cleaning

Exhaust tips accumulate road grime, brake dust, and carbon deposits. Clean them every few weeks using a mild wheel cleaner or stainless steel polish applied with a microfiber cloth. Avoid abrasive pads that can scratch the finish. For ceramic-coated tips, use a pH-neutral cleaner to avoid damaging the coating.

Underbody Inspection

Every oil change, take a moment to inspect the exhaust system. Look for signs of corrosion, especially at weld joints and clamp connections. If you live in a region where roads are salted in winter, consider rinsing the undercarriage periodically to remove salt residue. AFE Power's 304 stainless steel resists corrosion well, but no material is immune to harsh conditions over many years.

Re-Tightening After Major Service

If you remove the exhaust for any reason—such as transmission service or differential work—always use new gaskets and re-torque all fasteners to spec. Do not reuse old gaskets, as they will have compressed and may not seal properly.

Watch for Contact

Over time, hangers can sag or rubber mounts can stretch, allowing the exhaust to shift and contact the underbody. If you hear a new rattle or vibration, inspect the system immediately. Replacing a worn hanger is inexpensive and prevents more serious damage to the exhaust or vehicle components.

Common Questions About AFE Power Exhaust Installation

Will installing an AFE Power exhaust void my vehicle's warranty?

Under the Magnuson-Moss Warranty Act, a manufacturer cannot void a warranty simply because you installed an aftermarket part. However, if the aftermarket part directly causes a failure, the related repair may not be covered. A cat-back exhaust is generally considered a low-risk modification. If you have concerns, consult your dealer's service department before installation.

Does an AFE Power exhaust require a tune?

No. AFE Power cat-back and axle-back exhausts are designed to work with the factory engine control unit. The oxygen sensors remain in their original locations, and the system does not alter airflow sensors or fuel trim. However, pairing the exhaust with a performance tune can unlock additional power by optimizing the air/fuel ratio for reduced backpressure.

How long does installation take?

For an experienced DIY mechanic, installation takes 2–3 hours on a lift and 3–4 hours with the vehicle on jack stands. First-timers should plan for 4–6 hours, especially if rust is an issue. Having a helper speeds up the process significantly.

Can I install an AFE Power exhaust myself without prior experience?

Yes, provided you have basic mechanical skills and a complete tool set. The direct bolt-on design eliminates the need for welding or fabrication. Read the instruction manual thoroughly before starting, watch any available installation videos from AFE Power, and proceed patiently. If at any point you feel uncertain, consult a professional exhaust shop.

Conclusion

Installing an AFE Power exhaust on your Dodge Charger is one of the most satisfying upgrades you can make. The process is straightforward, the components are precision-engineered, and the results are immediate and dramatic. You get a deeper, more aggressive exhaust note that announces your presence without being obnoxious. You gain measurable horsepower and torque that make the car feel more responsive and alive. And you reduce weight while improving the visual appeal of the rear end with polished or ceramic-coated tips.

By following this guide—preparing thoroughly, removing the old system with care, installing the new components with proper alignment, and verifying operation through systematic checks—you ensure that your AFE Power exhaust performs at its best for years to come. The satisfaction of completing the work yourself, combined with the daily enjoyment of the improved sound and performance, makes this project genuinely rewarding.

If you are ready to transform your Charger, an AFE Power exhaust is a proven choice. For more information on specific kits, sound clips, and compatibility by model year, visit the official AFE Power website. For community feedback and installation tips from other Charger owners, check out the Charger Forum. For torque specifications applicable to your specific model year, consult the factory service manual or a trusted resource like Allpar.