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Nitrous Express Maximizer EZ Progressive Nitrous Controller

Marsoni M251S
Sale price$159.57
Pay 4 payments of $39.89 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express Maximizer EZ Progressive Nitrous ControllerThe NX Maximizer EZ Progressive Nitrous Controller smoothly ramps in your nitrous system resulting in increased traction and less strain on your vehicles drivetrain. Ramp time is adjustable from 0 to 4. 5 seconds via a simple rotary knob (no laptops required). Easy 1 minute install Plugs directly into a standard relay harness eliminating the need to splice wires. Certificate of Origin Warranty
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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
4.5 ★★★★★
Based on 1178 reviews
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Verified Purchase
Manuel Loureiro
Chelsea, US
★★★★★ 1
not tight enough
It did slip on my BMW M5 F90 oil filter — it wasn’t tight enough. I had to use a microfiber cloth to fill the gap and make it tighter in order to loosen the oil filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
V
Verified Purchase
VM
Draper, US
★★★★★ 5
Worked Perfectly
Fits the S85 oil filter housing like a glove.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
N
Verified Purchase
Nicki D
Omaha, US
★★★★★ 5
Works as promised
Size: 2-Pack
Great product! Highly recommend. My check engine light turned off quickly, probably less than 20 minutes after I added the bottle to my tank and started driving. I waited a week to write the review just to make sure the check engine light didn’t turn on again. Success!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
H
Verified Purchase
Hi
Alexandria, US
★★★★★ 1
Don't waste your time
Size: 2-Pack
I did it 2 times back to back didn't do anything. Failed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kindle Customer
Draper, US
★★★★★ 4
Don't buy if your cat is plugged
Size: 2-Pack
The product works just not for long I followed the directions even added 2 it worked good until I filled up the vehicle with fuel
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Reviewed in the United States on May 31, 2026

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