BLOX Racing 2.5inch Composite Velocity Stack

BLOX Racing 2.5inch Composite Velocity Stack

Marsoni

M251S

$37.60

Get it in 3 business days with 1 day shipping. Friday, May 29

BLOX Racing 2.5inch Composite Velocity StackSKU: BXIM 00306 BLOX Racing 2. 5 Inch Composite Velocity Stack BXIM 00306 1992 2001 Honda Civic Acura Integra BLOX Racing 2. 5 inch composite velocity stack directs smooth airflow into intake manifolds on 1992 2001 Honda Civic and Acura Integra models with B series engines. This lightweight part clamps onto 2. 5 inch intake pipes to sharpen throttle response and add horsepower. Engineered bellmouth design pulls in more air volume for better engine

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Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.

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Reviewed in the United States on May 17, 2026

Verified Purchase

Bon43

Lake Worth, US

★★★★★ 5

Awesome

Easy to install. Fit appropriately. Value for the money for sure.

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Reviewed in the United States on September 26, 2025