


Injen 99-00 Civic Si Polished Cold Air Intake
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Injen 99-00 Civic Si Polished Cold Air IntakeAdd some easy horsepower to your Ride with this RD Series Performance cold air intake (CAI) from Injen Technology! The engineers at Injen have spent considerable amounts of time designing, testing, and perfecting this CAI to produce some serious bolt on power while also providing amazing engine bay aesthetics. In addition to the impressive power increase, the Injen team has ensured that safe Air fuel (A F) ratios are maintained throughout the
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Your Injen 99-00 Civic Si Polished Cold Air Intake orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Comfortable & Ideal
Color: 2 Pairs: Black
As a hot sleeper, I could never wear regular socks to bed, so I thought I’d try these. They have been comfortable and ideal for my needs. They’re easy to slip on and I take them off before I get out of bed. They’ve been great and my heels look WAY better after just 3 nights. Happy with the purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Great buy for rough heels
Color: Gray
These work great on hubby's feet which are always so dry. Just have to be consistent. They fit great and are comfortable he says.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Works and good quality...will last
Color: 2 Pairs: Black
Worked overnight
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Works well
Color: Gray
Makes my heels super soft in addition to applying lotion
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
★★★★★ 5
Works well and fast
Color: Gray
I have very dry and cracked heals and this has helped a lot in just two nights . They are very soothing and comfortable to wear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026