FLOWMASTER 817511 Ab Otl Exhaust 700042025183 4.6L 409S

( Brand: Flowmaster ), ( Part Type: Exhaust ), ( Manufacturer Part Number: 817511 ), ( UPC: 700042025183 )

Review FLOWMASTER 4.6l Ab Otl Exhaust System fits MUSTANG GT 2005–2010

The Flowmaster 817511 05-10 Mustang GT 4.6L Aftercat Back OTL 409S Exhaust System is a high-performance exhaust solution designed specifically for the 2005 to 2010 Ford Mustang GT with the 4.6L V8 engine. This exhaust system is part of Flowmaster's 409 Series, which is renowned for its distinctive deep and powerful sound, achieved through the use of their patented 40-series mufflers.

This exhaust system is an aftercat-back design, which means it replaces the rear sections of the exhaust system, including the catalytic converters, mufflers, and tips. The system is constructed from premium 304 stainless steel, which is known for its durability and resistance to corrosion. The design features a dual-exhaust configuration, which not only provides improved performance but also adds a visually appealing look to the Mustang.

The Flowmaster 817511 05-10 Mustang GT exhaust system utilizes Flowmaster's 40-series mufflers, which feature a unique internal design that maximizes exhaust gas flow while minimizing unwanted noise. The result is a deep, rumbling exhaust note that is sure to turn heads.

This exhaust system also includes 3.5-inch diameter piping, which provides increased exhaust gas flow, resulting in improved engine performance. The system comes with 4.5-inch round tips, which add a bold and aggressive look to the Mustang's rear end.

Installing the Flowmaster 817511 05-10 Mustang GT exhaust system is relatively straightforward, with most installations taking around 2 to 4 hours. The system comes with all necessary hardware for installation, including the catalytic converters and O2 sensors, making it a complete exhaust solution.

In summary, the Flowmaster 817511 05-10 Mustang GT 4.6L Aftercat Back OTL 409S Exhaust System is a high-performance exhaust solution that delivers improved engine performance and a deep, powerful exhaust note. Constructed from premium 304 stainless steel, this exhaust system is durable and corrosion-resistant, making it an excellent choice for Mustang enthusiasts who demand the best in performance and style.

Flowmaster 817511 05-10 Mustang GT 4.6L AOBL 409S Exhaust: Pros and Cons

The Flowmaster 817511 05-10 Mustang GT 4.6L AOBL 409S exhaust system is a popular aftermarket exhaust option for Mustang GT owners. Here are some pros and cons of investing in this exhaust system:

1. Enhanced Performance: The Flowmaster exhaust system is designed to improve the performance of your Mustang GT by reducing backpressure and increasing exhaust flow. This results in more power and torque, especially in the mid-range.

2. Improved Sound: The 409S muffler design delivers a deep, throaty exhaust note that is sure to please Mustang enthusiasts. This exhaust system is known for its distinctive sound, which is a result of the Flowmaster's patented "Series 40" muffler design.

3. Durability: Flowmaster exhaust systems are made from high-quality materials, including mandrel-bent tubing and stainless steel mufflers. This ensures that the exhaust system will withstand the rigors of daily driving and last for a long time.

4. Easy Installation: The Flowmaster exhaust system is relatively easy to install, with most users reporting that they were able to complete the installation in a few hours. This is a significant advantage for those who prefer to do their own car modifications.

5. Improved Fuel Efficiency: Some users have reported that the Flowmaster exhaust system improves fuel efficiency by reducing exhaust gas recirculation (EGR). This can lead to savings at the gas pump over time.

1. Cost: The Flowmaster exhaust system is more expensive than the stock exhaust system. The cost of the exhaust system, along with the cost of any necessary installation tools or labor, can add up quickly.

2. Loudness: The Flowmaster exhaust system is known for its loud exhaust note, which may not be to everyone's taste. If you prefer a quieter exhaust system, this may not be the best option for you.

3. Drone: Some users have reported that the Flowmaster exhaust system can produce a drone or resonance at certain RPMs. This can be annoying for some drivers and passengers.

4. Weight: The Flowmaster exhaust system is heavier than the stock exhaust system, which can affect handling and fuel efficiency.

5. Fitment Issues: Some users have reported fitment issues with the Flowmaster exhaust system, particularly with the catalytic converter. This can require additional modifications or custom fabrication to achieve a proper fit.

The Flowmaster 817511 05-10 Mustang GT 4.6L AOBL 409S exhaust system offers significant performance and sound benefits for Mustang GT owners. However, it also comes with some drawbacks, including cost, loudness, drone, weight, and potential fitment issues. Ultimately, the decision to purchase this exhaust system depends on your personal preferences and priorities. If you value performance, sound, and durability, and are willing to pay the price, the Flowmaster exhaust system may be the right choice for you. If you prefer a quieter, more fuel-efficient exhaust system or have concerns about fitment, you may want to consider other options.

If you are considering purchasing the Flowmaster 817511 05-10 Mustang GT 4.6L AOBL 409S exhaust system, it is recommended that you do your research thoroughly before making a decision. Read online reviews from other Mustang GT owners who have installed this exhaust system to get a better idea of the pros and cons. It is also recommended that you consult with a professional exhaust shop or mechanic to ensure a proper fit and installation. Finally, be prepared for the additional cost and potential challenges that come with installing a high-performance exhaust system.

part # 817511 price

• $665.95

specifications frazzlekits:

• for models: Gt, Mustang
• for years: 2005-2010
• brand: Flowmaster
• part type: Exhaust
• manufacturer part number: 817511
• upc: 700042025183

seller frazzlekits:

• rating: 100.0%
• # reviews: 15351

returns frazzlekits:

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

general frazzlekits:

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

shipping frazzlekits:

• class: Standard
• carrier: FedEx
• transit: 3-9 Days
• service: FedEx Ground or FedEx Home Delivery
• type: Fixed
• cost: $0.00

payments frazzlekits:

• credit card: Diners-club
• wallet: Google-pay
• other

offer frazzlekits:

• started: February 11, 2025
• availability: In Stock
• sold: 0
• options: Ship-to-home
• best offers: True
• quantity: 2

Flowmaster 817511 Is Similar To:

• Flowmaster 817958 Outlaw Extreme Cat-back Exhaust 2020-2022 Jeep Gladiator 3.6l (41.4% similar) $435.95. (August 26th, 2024)
• Flowmaster 817732 Outlaw Axle Back Exhaust - Mustang Gt 15-17 Good Condition (43.7% similar) $599.95. (August 29th, 2024)
• Flowmaster 717992 Used Exhaust System Kit-flowmaster Flowfx Axle Back Fits 16-22 Camaro 3.6l-v6 (37.3% similar) $562.95. (September 13th, 2024)
• Flowmaster 817850 American Thunder Axle-back Exhaust (52.5% similar) $425.95. (September 16th, 2024)
• Flowmaster 817806 Ford Mustang Gt Outlaw Axle-back Exhaust System Great Shape (64.3% similar) $289.99–$1080.58. (September 25th, 2024)
• Flowmaster Fm817750 15 Mustang Ecoboost/5.0 American Thunder Resonator-back Exhaust Syst (59.7% similar) $559.95–$972.95. (September 26th, 2024)
• Flowmaster 817592 Exhaust System Kit-outlaw Series Tm Axle Back Fits 13-14 Mustang (41.9% similar) $699.95. (October 11th, 2024)
• Flowmaster 717929 2014 Chevrolet Stainless Dual Fx Exhaust Cat Back (46.6% similar) $716.95. (October 11th, 2024)
• Flowmaster 17421 American Thunder Axle Back Exhaust System For 05-09 Mustang V6 (51% similar) $460.95. (October 19th, 2024)
• Flowmaster 817823 Used Kit-outlaw Series Tm Axle Back #817823 Fits 15-23 Mustang (34.2% similar) $921.95. (October 23rd, 2024)
• Flowmaster 817756 Outlaw Exhaust System Fits 15-20 Ford F150 Ecoboost 2.7 3.5 - (48.3% similar) $1024.95. (November 6th, 2024)