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Description
GFB Mach 2 Atmosphere Conversion Kit-Changes T9120 from Recir to AtmosphereMACH 2 ATMO UPGRADE KIT TO CONVERT T9120 ? FROM RECIRC TO ATMO VENTING BOV, WITH TRUMPET, SPRING AND PLUG. Harder spring supplied in this kit, as the valve needs to remain closed at idle when venting to atmo, to prevent stalling backfiring. Installation Instructions
MACH 2 ATMO UPGRADE KIT TO CONVERT T9120 ?FROM RECIRC TO ATMO VENTING BOV, WITH TRUMPET, SPRING AND PLUG. Harder spring supplied in this kit, as the valve needs to remain closed at idle when venting to atmo, to prevent stalling/backfiring.Installation Instructions
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4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great product
Size: CF10134&CA11476
Price great. Fit perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Fit
Size: 8.8" x 9.3" x 1.1"
Product looks and works well
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Easy installation
Size: 8.8" x 9.3" x 1.1"
It fit my 2011 Honda accord coupe 👍🏼
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Works great
Size: 8.8" x 9.3" x 1.1"
Good filter
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Reviewed in the United States on August 15, 2025
★★★★★ 5
Fit as stated
Size: 8.8" x 9.3" x 1.1"
Perfect fit for my 2013 Honda and price was great
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Reviewed in the United States on April 28, 2025