


NEUSPEED Secondary Air Injection Kit
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
NEUSPEED Secondary Air Injection KitSecondary Air Injection Kit for applicable VW Audi Group EA888 Gen1 Gen2 2. 0L TSI engine. Notes Kit includes: Oiled Cotton Gauze or Dry Media Mini Filter, Billet Adapter and Support Clip. Oiled Cotton Gauze Mini Filter clean, re oil, and use many times over. Dry Media Mini Filter replace when necessary, to extend life, use compressed air only to clean off excessive debris.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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4.2 ★★★★★
Based on 315 reviews
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Product Reviews
★★★★★ 5
Good price on the part and 5 min install saved me $35
Fit fine in my 4th gen 4Runner took 5mins to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 4
Fit 4runner
Fit my 05 4runner. Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
★★★★★ 5
Great price!
I love that I can order these on Amazon for less than half of what I would pay at the mechanic. They fit perfect, and they're a pretty easy install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Will buy again!
What a perfect replacement and they fit just right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
★★★★★ 5
Easy to install and works perfectly
Great price. It does what it's supposed to do. Keeps my air flow clean. Super easy to install, I can't believe mechanics charge to do this. Once you see how easy it is, you'll save yourself that expense. The material is top-quality charcoal, so it cleans all the nasty mold particles from getting into the vehicle. There is no smell, and that is a plus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
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