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X-Series Single to Dual Stage Conversion Kit (35-50-75-100-150-200 HP)

Marsoni M251S
Sale price$241.50
Pay 4 payments of $60.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
X-Series Single to Dual Stage Conversion Kit (35-50-75-100-150-200 HP)Single to Dual Stage Conversion Simple, Clean Install 200 HP Solenoids E85 Compatible With Different Jetting Includes Jetting For 35 50 75 100 150 200HP X Series: X Series systems are made from the same high quality parts and materials as Nitrous Outlet systems, but feature slightly smaller solenoids that are capable of flowing up to 200 HP. All Nitrous Outlet parts and accessories are compatible with X Series systems. Application: This kit includes
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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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4.6 ★★★★★
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ShakeAndBake
Houston, US
★★★★★ 5
bosch never disappoints
Size: 7.5" x 8.7" x 1.4"
good product+fair price=value for money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
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Blunt Bunny
Fort Morgan, US
★★★★★ 5
First Rate Quality
Size: 7.5" x 8.7" x 1.4"
Easy installation; design of filter made installation mistake-proof.
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Reviewed in the United States on March 31, 2026
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Amazon Customer
Houston, US
★★★★★ 5
will buy again
Size: 7.5" x 8.7" x 1.4"
Works as expected and the fit was perfect.
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Reviewed in the United States on February 15, 2026
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Michael Nanninga
Battle Creek, US
★★★★★ 5
Great product!
Perfect fit and looks great!
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Reviewed in the United States on June 8, 2025
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Verified Purchase
Patrick Pinnock
Draper, US
★★★★★ 5
Great upgrade cabon fiber look
Perfectly fit and was an upgrade to the car. It fits the bmw e46 model to a tee. Will buy again if needed.
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Reviewed in the United States on April 21, 2026

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