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BMW X3M / X4M Valved Sport Exhaust System (F97 / F98)
BMW X3M / X4M Valved Sport Exhaust System (F97 / F98)
BMW X3M / X4M Valved Sport Exhaust System (F97 / F98)
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BMW X3M / X4M Valved Sport Exhaust System (F97 / F98)

Marsoni M251S
Sale price$1499.50
Pay 4 payments of $374.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
BMW X3M / X4M Valved Sport Exhaust System (F97 / F98)For those who demand an unrivaled exhaust experience from their BMW X3M and X4M, Valvetronic Designs has crafted a system that blends precision engineering, raw emotion, and absolute control. With a deep passion for the BMW M community, we set out to create an exhaust system that not only enhances performance but also amplifies the character of the S58 engine in a way thats both visceral and exhilarating. Our valved exhaust system is designed with no
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1597 reviews
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Product Reviews
K
Verified Purchase
Kenny
Draper, US
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
O
Verified Purchase
Outcast
Cuba, US
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
R
Verified Purchase
R
Carnegie, US
★★★★★ 5
Old Merc Inline 6s - 1500, 1400, 1250, 1150
This is the second time I purchased from them. The kits are good quality, and impeller is durable. Pictures is the initial one I purchased from them two seasons ago. It had hundreds of hours on it, plus me accidentally cooking it for 3 mins without water hooked up to the engine - which is why I purchased it again. Given 2 seasons of use and my recent screw up it held up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2024
J
Verified Purchase
Justin D.
Bozeman, US
★★★★★ 4
Merc black max 150
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2024
R
Verified Purchase
Rob
West Palm Beach, US
★★★★★ 5
Best bang for your buck kit!
Can’t beat the price by any means. Total rebuild kit for Mercury 115 outboard for less than half the price and all high quality parts nothing cheap about this kit at all except the price. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2024

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