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Item #:
46463545
Flowmaster 425403-FM FlowMonster Muffler
87% of respondents would recommend this to a friend
Item #:
46463545
FJD 167
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
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Order now and get it around Sunday, October 04
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What Stands Out
Enhanced Performance
The Flowmaster 425403-FM FlowMonster Muffler improves exhaust flow, resulting in increased horsepower and torque, making it ideal for performance enthusiasts looking to upgrade their vehicle's exhaust system.
Aggressive Sound
Designed to provide a deep, aggressive exhaust note, this muffler enhances the driving experience, delivering a powerful sound that resonates with performance-driven drivers and enhances vehicle character.
Durable Construction
Constructed from high-quality materials, the FlowMonster Muffler ensures longevity and reliability, offering users an exceptional value with reduced maintenance and replacement costs over time.
Product Details
- 2.50 in. dual inlet / 3.00 in. center outlet for a powerful exhaust system
- Constructed with durable 16-gauge aluminized steel for maximum strength and durability
- Chambered design cancels out unwanted frequencies, producing an aggressive exhaust note
- Coated with high heat resistant silver paint for an aggressive look
- Increases exhaust flow for improved performance and throttle response
- Compact design accommodates most cars, trucks, and SUVs
| Brand | Flowmonster |
| Manufacturer part number | 425403-FM |
| Inlet diameter | 2.5 in |
| Outlet diameter | 3 in |
| Muffler type | Chambered Mufflers |
| Material | 16-gauge Aluminized Steel |
| Finish | Silver Painted Finish |
| Vehicle fitment type | Specific |
| Product name | Flowmaster 425403-FM FlowMonster Muffler |
| Compatible cars | Most Cars/Trucks/SUVs |
| Weight | 8.65 lb (3.92 kg) |
| Model | 425403-FM |
| Has written warranty | No |
Who Should Buy?
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Performance Enthusiasts
Ideal for drivers looking to enhance their vehicle's exhaust flow and sound for better performance.
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Off-Road Vehicles
Perfect for off-roaders needing durable, high-performance mufflers to withstand tough conditions and provide rich sound.
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Custom Installers
Great for those customizing their exhaust systems, as it's designed for easy installation and compatibility.
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Noise Sensitivity
Not suitable for users sensitive to loud noises, as it produces a noticeable sound that may be bothersome.
Product Description
Flowmaster 425403-FM FlowMonster Muffler
About This Item
Are you looking to add some extra aggression to your vehicle's sound? Look no further than the FlowMonster Muffler. With its 2-chamber internal design, this muffler not only cancels out annoying high-pitched frequencies, but it also increases exhaust flow for improved performance and throttle response. Say goodbye to any restrictions in your exhaust system and hello to enhanced horsepower and torque. Constructed with durable 16-gauge aluminized steel, the FlowMonster Muffler is built to withstand the test of time.
Plus, it's 100% MIG welded for maximum strength and durability, ensuring that it can handle any road conditions. Installing the FlowMonster Muffler is a breeze, as it is designed to accommodate most cars, trucks, and SUVs. You don't have to worry about compatibility issues with this muffler. But let's get to the best part - the sound.
The FlowMonster Muffler produces an aggressive tone that will turn heads wherever you go. It's the perfect way to make a statement with your vehicle. Customers who have purchased the FlowMonster Muffler have raved about its performance gains. They have experienced noticeable improvements in horsepower and torque, giving their vehicles that extra boost on the road. When you purchase the FlowMonster Muffler, you can rest easy knowing that it comes with a warranty, ensuring your satisfaction and peace of mind.
So, if you're searching for a high-quality performance exhaust, the FlowMonster Muffler is the ideal choice. Don't miss out on the opportunity to transform your vehicle's sound and performance. Get yours today and experience the power of the FlowMonster Muffler.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the construction material of the muffler?
Answer: The muffler is constructed of durable 16-gauge aluminized steel. -
Question:
Does the muffler increase exhaust flow?
Answer: Yes, the muffler increases exhaust flow for increased performance and excellent throttle response. -
Question:
What type of cars does the muffler accommodate?
Answer: The compact design of the muffler accommodates most cars, trucks, and SUV’s.
Flowmonster Flowmaster Mufflers Editorial Review
High-Quality Sound and Comfortable Fit Make These Headphones a Top Choice The XYZ headphones have quickly become a popular choice among music lovers and audio enthusiasts. Customers have raved about the high-quality sound and comfortable fit that these headphones provide. One customer commented that the sound produced by the headphones is "crisp and clear," allowing them to fully immerse themselves in their favorite songs. Another user praised the deep bass and detailed midrange, stating that they were able to hear nuances in the music that they had never noticed before. In addition to the exceptional sound quality, customers have also praised the comfortable fit of these headphones. Many users have noted that the adjustable headband and cushioned ear cups make them perfect for extended listening sessions. One customer even mentioned that they forgot they were wearing headphones because of how comfortable they were. A common theme among customer reviews is the durability of these headphones. Users have reported that the headphones are well-built and have withstood daily use without any issues. One customer mentioned that they have used the headphones while exercising and have been impressed with how well they held up to sweat and movement. Despite the overwhelmingly positive feedback, a few customers did have some minor complaints. One user mentioned that the headphones can cause a slight discomfort after wearing them for an extended period of time. Another customer noted that they would have liked to see a longer charging cable included with the headphones. Overall, the XYZ headphones have garnered a lot of positive reviews for their high-quality sound, comfortable fit, and durability. These headphones offer a great listening experience and are well worth the investment.
Customer Reviews & Ratings
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Pros
- Crisp and clear sound
- Deep bass and detailed midrange
- Comfortable fit for extended use
- Durable Construction
Cons
- Slight discomfort after extended wear
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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10 September 2026 · via Trustpilot
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10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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FJD 167
Order now and get it around Sunday, October 04
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Features & Benefits
- 2-Chamber Internal Design Cancels out Annoying High Pitch Frequencies
- Increases Exhaust Flow for Increased Performance
- Excellent Throttle Response
- Constructed of Durable 16-gauge Aluminized Steel
- 100% MIG Welded for Maximum Strength and Durability
- Compact Design Accommodates Most Cars/Trucks/SUV’s
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