


Borla Boomer Muffler Thumper Oval 2-1/4in In 4in Side Rount Out
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Borla Boomer Muffler Thumper Oval 2-1/4in In 4in Side Rount OutSKU: 40057 UPC: 808422400572 Borla Boomers Muffler Thumper 2. 25in Center Inlet 4in Single Round Tip 4. 25in x 7. 88in Oval x 14in Long Body Universal Fit The Borla 40057 Thumper Boomer Muffler delivers the signature Borla Sound of Power through its patented race proven design. This universal muffler fits custom exhaust setups on cars, trucks, and performance vehicles with 2. 25 inch piping for gains in horsepower, torque, fuel economy, and engine
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Your Borla Boomer Muffler Thumper Oval 2-1/4in In 4in Side Rount Out orders ship within 1-2 business days.
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- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
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Fits true to form....really nice
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Love it
Color: Jordy Blue
Love the color and the perfect fit
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Es de muy buena calidad
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Exelente muy bueno
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Reviewed in the United States on March 27, 2026
★★★★★ 4
Great product!
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Reviewed in the United States on May 21, 2025
★★★★★ 5
10/10
Color: White
Came very fast ! & looks greats on my daughter iPad 🥰
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