★★★★★ 5
Works as it should
Works as it should
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
Nitrous Express 4150 Billet Crossbar Pro-Power Nitrous Kit (100-500HP) w/o Bottle
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Nitrous Express 4150 Billet Crossbar Pro-Power Nitrous Kit (100-500HP) w/o BottleThe 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 nitrous kit. It includes a custom
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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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4.4 ★★★★★
Based on 2374 reviews
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Product Reviews
★★★★★ 4
Four Stars
Just what I needed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2016
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024
★★★★★ 5
Fits 1988 Sea Ray V-135 2 stroke (Mercury)
For those of you with the 135 hp
mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.
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Reviewed in the United States on August 3, 2024
★★★★★ 5
fixed issue
stopped the overheat issue on my outboard!!!
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Reviewed in the United States on August 6, 2025
