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Item #:
204974498
Flowmaster 818121 American Thunder Axle Back Exhaust System Stainless Single Exit
87% of respondents would recommend this to a friend
Item #:
204974498
SLE 27245
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from JP
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In stock
Imported from Japan store
QTY:
Order now and get it around Wednesday, September 23
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Max increases of up to 19 hp and 19 lb-ft over the stock exhaust at the rear wheels
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Note: Step Down Voltage Transformer required for using electronics products of JAPAN store (100 V). Recommended power converters Buy Now.
What Stands Out
Premium Sound
This exhaust system delivers a deep, aggressive tone, enhancing your vehicle's auditory appeal without excessive noise, making it perfect for enthusiasts who appreciate performance and style.
Durable Construction
Crafted from high-quality stainless steel, the Flowmaster exhaust system offers superior corrosion resistance and longevity, ensuring it withstands harsh conditions and maintains its performance over time.
Easy Installation
With bolt-on installation, this system allows for a quick and hassle-free upgrade, saving time and effort while ensuring a precise fit on your vehicle for optimal performance.
Product Details
| Brand Name | Flowmaster |
| Manufacturer Part Number | 818121 |
| Manufacturer | Flowmaster |
| UPC | 090127140284 |
| Global Trade Identification Number | 00090127140284 |
| OEM Equivalent Part Number | 818121 |
| Model Number | 818121 |
| Unit Count | 1.0 Count |
| Compatible with Vehicle Type | Car |
| Material Type | Plastic |
| Finish Type | u30b9u30c6u30f3u30ecu30b9u30b9u30c1u30fcu30eb |
| Brand | Flowmaster |
| Material | Plastic |
| Vehicle Service Type | Car |
| Number of Items | 1 |
| Item Weight | 40 lbs (18.14 kg) |
Who Should Buy?
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Performance Enthusiasts
These users seek enhanced engine performance and sound, which this exhaust system effectively provides.
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DIY Installers
Individuals who enjoy hands-on projects will appreciate the straightforward installation process of this exhaust system.
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Style Seekers
Car owners wanting to enhance their vehicle’s aesthetics and sound will benefit from the upgraded design.
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Noise Sensitive Users
Those who prefer a quieter driving experience may find this product excessively loud and annoying.
Product Description
Flowmaster 818121 American Thunder Axle Back Exhaust System Stainless Single Exit
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Customer Questions & Answers
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Question: How to Shop Flowmaster 818121 American Thunder Axle Back Exhaust Online From Ubuy?
Answer: It’s easy to shop Flowmaster 818121 American Thunder Axle Back Exhaust online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
Question: Is Flowmaster 818121 American Thunder Axle Back Exhaust Available to Shop Online in Sierra Leone?
Answer: Yes, at Ubuy Sierra Leone this product is available for you to shop at a reasonable price. The Flowmaster 818121 American Thunder Axle Back Exhaust is not available locally but you can trust us with our express shipping services. -
Question: How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
Flowmaster 818121 Editorial Review
The Flowmaster 818121 American Thunder Axleback Exhaust System has garnered attention from users for its impressive auditory qualities and overall performance enhancement. Customers highlighted the exhaust's deep and aggressive sound, which strikes a balance between being fun and suitable for daily driving. Many have replaced their previous muffler deletes with this system, appreciating how it achieves a loud exterior tone while keeping the interior noise levels significantly lower, thus improving the driving experience. The installation process has received mixed reviews. While several users found the task to be straightforward and quick, taking about ten minutes, others voiced frustration regarding the quality and design of the hangers, noting that the instructions were not clear. Despite these issues, the prevalence of positive reflections on sound quality and overall performance—such as perceived improvements in throttle response and power—remain a focal point in customer praise. The stainless-steel Construction and polished tip also contribute to the product's perceived quality, making it an attractive option for those looking for a cost-effective performance upgrade. Overall, the Flowmaster 818121 is well-received for its sound, performance, and ease of use, although potential buyers should be prepared to put some creativity into the installation process due to design shortcomings. **
Customer Reviews & Ratings
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Pros
- Excellent sound quality; deep and aggressive tone
- Reduction in interior noise compared to previous muffler deletes
- Perceived improvements in throttle response and power
- Quick installation process for some users
- High-quality stainless-steel Construction
Cons
- Poorly designed hangers with unclear instructions
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
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Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
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Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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SLE 27245
Order now and get it around Wednesday, September 23
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- 60 Series performance muffler for a deep, aggressive to moderate performance tone
- Improved exhaust flow with 409 stainless steel construction
- Delta Flow Technology for increased performance and reduced drone
- Uses factory hanger locations for easy installation
- Durable and corrosion-resistant for a stealthy look
- Maximizes horsepower and torque gains for enhanced performance
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Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.