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  3. FLOWMASTER 817737

FLOWMASTER 817737 American Cat Exhaust 700042032013

fits model: Thunder.

817737 Flowmaster American Thunder Cat-back Exhaust System

( Brand: Flowmaster ), ( Part Type: Exhaust ), ( Material: Stainless Steel ), ( Color: Black Muffler; Natural Tubing ), ( Inlet Diameter: 2.500 In. ), ( Shape: Oval ), ( UPC: 700042032013 ), ( Manufacturer Part Number: 817737 )

Review FLOWMASTER American Cat back Exhaust System fits THUNDER

The Flowmaster American Thunder Cat-Back Exhaust System, model number 817737, is a high-performance aftermarket exhaust solution designed to enhance the sound and overall performance of your vehicle. This cat-back system is engineered specifically for select American muscle cars and trucks.

This system features 409S stainless steel construction, ensuring durability and resistance to rust and corrosion. The 409S steel is mandrel-bent to maintain proper exhaust flow and reduce exhaust restriction, leading to improved horsepower and torque.

The American Thunder Cat-Back Exhaust System comes with four polished 18-inch aluminized tips that add a touch of style and sophistication to the rear of your vehicle. The tips are designed to fit seamlessly with your bumper or valance, depending on the application.

This exhaust system utilizes a dual-chamber design with Flowmaster's famous "H-pipe" technology. This design provides a smooth, deep, and powerful exhaust note that is a hallmark of Flowmaster exhaust systems. The H-pipe design also helps to improve scavenging and reduce back pressure for improved engine efficiency.

The American Thunder Cat-Back Exhaust System is a direct-fit replacement, meaning it bolts on easily and requires no modifications to your vehicle's factory exhaust system. The system comes with all necessary hardware and clamps for installation. Additionally, this system is CARB-legal, making it a great choice for vehicles registered in California and other states with strict emissions regulations.

Overall, the Flowmaster American Thunder Cat-Back Exhaust System is a high-quality aftermarket exhaust solution that delivers a great balance of power, sound, and style. Whether you're looking to enhance the performance of your daily driver or take your weekend warrior to the next level, this exhaust system is a great choice.

Flowmaster American Thunder Cat-Back Exhaust: A Detailed Analysis

The Flowmaster American Thunder cat-back exhaust is a popular aftermarket exhaust system for those seeking improved performance and a more appealing exhaust note for their vehicles. In this analysis, we will discuss the key pros and cons associated with purchasing this exhaust system.

Pros:

1. Enhanced Performance: The Flowmaster American Thunder cat-back exhaust system is designed to provide better exhaust flow and increased horsepower and torque. This can lead to improved acceleration and overall engine performance.

2. Distinctive Sound: The exhaust features Flowmaster's signature "rumble" sound, which is often sought after by enthusiasts. The system provides a deep and aggressive tone that is sure to please.

3. Durability: The system is constructed using high-quality materials, such as mandrel-bent tubing and stainless steel mufflers. This ensures that the exhaust can withstand the rigors of daily driving and lasts for a long time.

4. Easy Installation: The cat-back exhaust system is relatively easy to install, as it only requires the removal of the factory exhaust system. This can save time and money compared to a full exhaust system replacement.

5. Improved Fuel Economy: Some users have reported improvements in fuel economy due to the more efficient exhaust flow. However, this may vary depending on the specific vehicle and driving conditions.

Cons:

1. Expensive: The Flowmaster American Thunder cat-back exhaust system is more expensive than the OEM exhaust system. This may be a significant investment for some enthusiasts.

2. Louder Exhaust Note: The exhaust system produces a louder exhaust note compared to the factory system. This may not be desirable for those seeking a quieter ride.

3. Drone: At certain RPMs, some users have reported droning or resonating sounds from the exhaust system. This can be irritating and may detract from the overall driving experience.

4. Requires Modifications: In some cases, the exhaust system may require additional modifications to fit properly. This could involve custom fabrication or the purchase of additional parts.

5. May Not Fit All Vehicles: The Flowmaster American Thunder cat-back exhaust system may not be compatible with all vehicle makes and models. It is essential to verify compatibility before making a purchase.

Conclusion:

The Flowmaster American Thunder cat-back exhaust system offers several advantages for enthusiasts, including improved performance, a distinct exhaust note, and durability. However, it also comes with some drawbacks, such as a higher price point, a louder exhaust note, and potential droning or resonating sounds. Ultimately, the decision to purchase this exhaust system depends on the individual's priorities and preferences.

Recommendation:

If you are an enthusiast seeking improved performance and a more aggressive exhaust note for your vehicle, the Flowmaster American Thunder cat-back exhaust system is an excellent choice. However, it is essential to consider the potential cons, such as the higher cost and potential droning, before making a purchase. Additionally, be sure to verify compatibility with your specific vehicle make and model before proceeding with the installation.

part # 817737 price

  • $844.95

specifications frazzlekits:

  • for models: Thunder
  • brand: Flowmaster
  • part type: Exhaust
  • material: Stainless Steel
  • color: Black Muffler; Natural Tubing
  • inlet diameter: 2.500 In.
  • shape: Oval
  • upc: 700042032013
  • manufacturer part number: 817737

offer frazzlekits:

  • quantity: 10
  • started: June 17, 2025
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

returns frazzlekits:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

payments frazzlekits:

  • credit card: Visa
  • wallet: Apple-pay
  • other

general frazzlekits:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits

shipping frazzlekits:

  • transit: 5-9 Days
  • service: Standard
  • cost: $0.00
  • class: Standard
  • type: Fixed

seller frazzlekits:

  • # reviews: 595016
  • rating: 97.7%
for models: thunder, part type: exhaust, inlet diameter: 2.500 in., shape: oval,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust system kits, color: black muffler natural tubing, material: stainless steel, sku: 5240336708556611,

Flowmaster 817737 Is Similar To:

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5 offers $844.95–$844.95 USD
  • Offer #1: $844.95 price + free delivery = $844.95* total. Sound Level: Aggressive / Moderate. PART NUMBER.FREE SHIPPING
  • Offer #2: $844.95 price + free delivery = $844.95* total. mandrel-bent tailpipes which are finished off with tuned resonators and stainless steel tips that exit within the rear bumper valance. Compatible with 2015-2023 Dodge Challenger SXT with 3.6L engine.; Flowmaster's American Thunder Cat-back exhaust system for the 2015-2023 Dodge Challenger SXT is perfect for the person looking for a moderate exterior sound level while maintaining a mild interior sound with all of the performance benefits that you would expect from Flowmaster.FREE SHIPPING
  • Offer #3: $844.95 price + free delivery = $844.95* total. Fits 2015-2023 Dodge Challenger SXT with 3.6L engine. 2015-2023 Dodge Challenger SXT with 3.6L engine.FREE SHIPPING
  • Offer #4: $844.95 price + free delivery = $844.95* total.FREE SHIPPING
  • Offer #5: $844.95 price + $115.62 delivery = $960.57* total. Exhaust Type: Dual Tailpipes/Super 44 Series Mufflers/2.5 in.+$115.62 shipping