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X-Series Ford 1999-2004 Mustang GT, Cobra, Mach 1 EFI Single Nozzle System - Gas/E85 (5-55psi)(35-200HP)

Marsoni M251S
Sale price$407.00
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Get it in 3 business days with 1 day shipping. Friday, May 29
X-Series Ford 1999-2004 Mustang GT, Cobra, Mach 1 EFI Single Nozzle System - Gas/E85 (5-55psi)(35-200HP)Fits 1999 2004 Mustang GT Cobra Mach 1 10lb Nitrous Bottle 1 16 Nozzle All Hardware & Wiring Included Includes Jetting For 35 50 75 100 150 200HP X Series. X Series systems are designed for racers on a budget. Made from the same high quality parts and materials as other Nitrous Outlet systems, X series systems feature a 1 16th nozzle and smaller solenoids than traditional Nitrous Outlet systems. X Series systems can flow 175HP out of the box Single
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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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4.5 ★★★★★
Based on 2089 reviews
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Tim Arnette
Bozeman, US
★★★★★ 5
Looks good feels good
Size: 13 Wide, Color: Black
I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
E
Verified Purchase
Elizabeth Henderson
Louisville, US
★★★★★ 4
Very narrow
Size: 10 Wide, Color: Cognac
Run narrow. For very narrow feet. Wide width fits like a regular width.
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Reviewed in the United States on February 9, 2026
M
Verified Purchase
Mynx
Lake Worth, US
★★★★★ 5
Comfortable Shoes Right Out of the Box
Size: 9, Color: Black
I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
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Reviewed in the United States on September 2, 2025
B
Verified Purchase
B.J. G
Cuba, US
★★★★★ 3
Decent Shoes with Misleading Description (Not Leather)
Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
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Reviewed in the United States on March 28, 2026
D
Verified Purchase
Dianne
Birmingham, US
★★★★★ 5
Men’s oxfords
Size: 10.5, Color: Black
Good quality and perfect fit
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Reviewed in the United States on March 22, 2026

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