Flowmaster 8042543 40 Series Muffler 409S - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
- Brand:
- Flowmaster
- Model Number:
- FLO8042543
- UPC:
- 700042022564
- EAN:
- 0700042022564
- Walmart SKU:
- 49930522
Key Takeaway
Market direction turned downward with current $122.35 representing 0.0% under standard pricing.
Third-Party Seller Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$135.95 | |
|
Lowest Price
|
$111.95 | |
|
Most Recent Price
|
$132.99 |
- Average Price
- $125.27
- First Tracked
- Last Update
Walmart.com Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$123.95 | |
|
Lowest Price
|
$111.55 | |
|
Most Recent Price
|
$122.35 |
- Average Price
- $119.92
- First Tracked
- Last Update
Price Analysis
Tracking History: We have tracked Flowmaster 8042543 40 Series Muffler 409S - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound since 9/23/2023. The most recent price update was on Jun 7, 2026.
Price Range: Over the past 90 days, the price has ranged from $111.55 (lowest on 12/29/2024) to $123.95 (highest on 2/10/2025). The average price during this period is $119.92.
Current Trend: Walmart.com prices have ranged from $122.35 (Jun 7) to $122.35 (Jun 7) over the past 90 days. Current price is close to the 90-day average of $122.35.
Customer Insights: Rated 4.33/5 from 6 reviews.
Customer Reviews
6 reviewsCustomer Reviews
4.3
Based on 6 reviews
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Showing 5 of 6 reviews
Great set of mufflers!
The quality and sound are great, just as loud as I'd hoped they would be. They are loud and do cause interior resonance especially in an older Vette where the cabin is so tight but I love the way they sound. And as always a great experience from Jegs.
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Excellent sounding
Great sounding on a dual cat back for my 2002 V6 Mustang. Heavy duty mufflers. I owned one before and lasted forever. Mine broke in after a few miles.
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IT BREATHES !!!
PUT A SET ON MY CHALLENGER WITH A SET OF LONG TUBE HEADERS...WHAT A DIFFERENCE !! GREAT SOUND AND PERFORMANCE GAIN !!
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Easy ordering process
Nothing like the original 40 series flowmasters, my 68 fastback sounds great! Thanks Jegs!
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It rusts don’t buy
I bought these 14 months ago and they already are rusting don’t buy they show the product as stainless steel but stainless steel doesn’t rust they are using cheap materials to make this product straight rip off
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Price History
Recent Price Changes
Detailed price history for the past 90 days
Walmart.com Pricing
2 recordsWalmart.com prices have ranged from $122.35 (Jun 7) to $122.35 (Jun 7) over the past 90 days. Current price is close to the 90-day average of $122.35.
| Date | Price | Change | % Change |
|---|---|---|---|
| $122.35 | $+0.00 | +0.0% | |
| $122.35 | — | — |
Third-Party Seller Pricing
2 recordsThird-Party Sellers prices have ranged from $122.35 (Mar 15) to $132.99 (May 1) over the past 90 days. Current price is close to the 90-day average of $127.67.
| Date | Price | Change | % Change |
|---|---|---|---|
| $132.99 | $+10.64 | +8.7% | |
| $122.35 | — | — |