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K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993
K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993
K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993
K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993
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K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993

Marsoni M251S
Sale price$137.50
Pay 4 payments of $34.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Cold Air Intake - High-flow, Roto-mold Tube - BMW 320I, 323I, 325i, E34, 170BH 1982-1993Guaranteed to increase horsepower Designed to improve throttle response and engine sound Replaces entire factory air intake system Not legal for highway use in states adopting California emission regulations Washable and reusable lifetime air filter Lasts up to 100,000 miles before service is required (depending on driving conditions) Easy to install, usually in 90 minutes or less K&N No Hassle Lifetime Limited Warranty Replacement Filter RU 5128 Air
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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]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1671 reviews
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Product Reviews
B
Verified Purchase
B R.
San Leandro, US
★★★★★ 3
That they are not as they appear in photos.
The photos do not show that there is a section for the big toe and the rest is open. The photo shows as if the whole toe section is one opening instead of two. They work for what I want but just not what I thought they would be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2021
M
Verified Purchase
Melissa Schneider
Louisville, US
★★★★★ 2
Not as pictured
The pictures make it seem like these are open all the way across. There are actually two holes. It is quite tight on the big toe. I will keep these, however I would not order these again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2023
H
Verified Purchase
Harley
New York, US
★★★★★ 5
Perfect for my needs
Size matches my feet. Good enough quality. Comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
N
Verified Purchase
N
Grantham, US
★★★★★ 4
Comfortable toeless socks
Very soft and comfortable. However, the elastic is too tight. Should be wider so circulation is not cut and you are able to wear it at night. Therefore, is not good for diabetic and heavier people. Larger sizes should be available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
T
Verified Purchase
TW
Phoenix, US
★★★★★ 1
Terrible Quality, fell apart
Very poor quality. Came apart after one washing. Unraveled. Would not purchase again. Wish I had not purchases the first time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

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