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Vibrant 4 Ply Reducer Couper 4.0in ID x 3.75in ID x 3in Long - Black

Marsoni M251S
Sale price$39.50
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Vibrant 4 Ply Reducer Couper 4.0in ID x 3.75in ID x 3in Long - BlackSKU: 19742 UPC: 690092179236 Vibrant Universal 4 Ply Reducer Coupler 4. 0in ID x 3. 75in ID x 3in Long Black This Vibrant Performance reducer coupler steps down precisely from 4. 0 inch inner diameter to 3. 75 inch inner diameter over 3 inches for seamless custom air intake and turbo piping fabrication. It fits universal performance applications on modified cars trucks and imports with aftermarket intake systems. Black 4 ply silicone construction
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  • We offer a 30-day return/exchange service after receiving.
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4.9 ★★★★★
Based on 2485 reviews
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A
Verified Purchase
Alan Douglas Charles Cavanaugh II
Draper, US
★★★★★ 5
Must have over other filters.
Size: 2" x 10" x 11"
Amazing KN never fails for cabin filter works great in my 2021 Honda Civic hatchback sport touring.Must have for the 10th Gen Civic better air flow in car and cleaner smell easy to wash and reuse.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
M
Verified Purchase
Martha Brown
Belleville, US
★★★★★ 5
Quality
Size: 2" x 10" x 11"
My brother put me onto these filters. Super easy to install. Also bought engine filter. One time expense. A bit pricey but cost covered if you were still buying paper ones in about 3 changes of paper ones. Will definitely pay for themselves. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
J
Verified Purchase
James G. Low
Phoenix, US
★★★★★ 5
It works like a champ!!
Size: 2" x 10" x 11"
best darn filter made..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
M
Verified Purchase
mitchell
Alexandria, US
★★★★★ 5
Excellent Air Flow
Size: 2" x 10" x 11"
Maximum clean air flow and lifetime use. Best you can buy. Invest 💯
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
B
Verified Purchase
Bob F.
Grantham, US
★★★★★ 4
Does Not Fit
Size: 2" x 10" x 11"
This does not fit the 2024 Accord Sport Hybrid. It is approximately 1/4 inch too wide on each side (1/2 inch total), will not fit in the opening. Car was entered into the system and purchase page says this is correct and will fit.
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Reviewed in the United States on February 22, 2026

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