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Fitting Attachment Style 1
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Fitting Color
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Swivel
- No (3)
- Yes (1)
O-Rings Included
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- Yes (1)
Price Range
Filter Options
- Made In USA (4)

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Fitting Size 1 (application)
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- -3 AN (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Fitting Attachment Style 1
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Fitting Size 2 (application)
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- -3 AN (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Fitting Attachment Style 2
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Fitting Angle
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Fitting Material
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Fitting Color
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- Natural (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Nickel (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Swivel
- No (3)
- Yes (1)
O-Rings Included
- No (3)
- Yes (1)
Price Range
Filter Options
- Made In USA (4)

Nitrous Express Couplers

5.0 out of 5 stars 1 Customer Reviews

Make the connections between AN or NPT threaded components easier with Nitrous Express couplers. Offered in different styles, materials, and finishes, they will create the perfect leak-free unions for your nitrous system.

Showing In Stock Items. Show All 9 Items.

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Nitrous Express Couplers 16181-90

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 10/31/2026

Get a FREE T-Shirt on qualifying Nitrous Express purchases! Visit www.summitracing.com/go/nex for redemption information.

Get a FREE Shirt after rebate on Nitrous Express purchases of $199 or more! Visit www.summitracing.com/go/nex for details and redemption form. Valid on purchases made between 8/14/26 and 10/31/26. Rebate must be submitted no later than 30 days after purchase date. U.S.A. residents only. Limit one free T-shirt per qualifying transaction. Cannot be combined with any other offer. End consumer rebate only. Purchases must total $199 or greater at MAP price in a single transaction.