★★★★★ 5
Good
Good
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Reviewed in the United States on March 30, 2026
Nitrous Express 4150 Billet Crossbar Stage 6 Nitrous Kit (50-300HP) w/o Bottle
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Nitrous Express 4150 Billet Crossbar Stage 6 Nitrous Kit (50-300HP) w/o BottleNitrous Express. 4150 BILLET CROSSBAR The new NX Billet Crossbar nitrous plate systems have just raised the bar in nitrous plate technology. The CNC machined design eliminates round spray bars resulting in excellent atomization and cylinder distribution. With no spray bars to sag rotate or disrupt airflow this is truly the Next Generation in cross bar nitrous plate technology. This crossbar nitrous system includes more than the standard crossbar
Quick Dispatch:
Your Nitrous Express 4150 Billet Crossbar Stage 6 Nitrous Kit (50-300HP) w/o Bottle orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your Nitrous Express 4150 Billet Crossbar Stage 6 Nitrous Kit (50-300HP) w/o Bottle ships.
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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
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4.5 ★★★★★
Based on 598 reviews
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Product Reviews
★★★★★ 5
Great replacement parts!
Perfect fit for my 2003 Mercury Salt Water 150 2 stroke engine. Everything I needed was in the box.” “Good quality parts and saved me a lot compared to OEM.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2025
★★★★★ 5
Great brand and value for the price
high quality parts, look just like OEM, packaged well, I like that a parts list is included so that contents can be verified.
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Reviewed in the United States on May 22, 2025
★★★★★ 5
OE Quality Part
Worked perfectly. Everything needed is there.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
10 out of 10
The must do service package. This is a "fits multiple" kit so youll have some extras. The kit also includes the lower unit gear oil seals, which is awesome. I always trust quicksilver to be durable and a great value for the money.
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Reviewed in the United States on February 23, 2026
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