SKU: 75442177752

525 Valve Cover Breathers ( SOLD AS A SET )(NOTE: This is one front and one back)

Sale price$112.50 Regular price$125.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

525 Valve Cover Breathers ( SOLD AS A SET )(NOTE: This is one front and one back)The common misconception about valve cover breathers, is the filter media used in your most common breathers is for filtering air into the engine. This is false. The motor experiences constant blow by, therefore, constant pressure is being emitted from the crank case. As your "filter" clogs up with oil & dirt during racing conditions, the rate at which the engine can relieve the constant pressure slows down. Increased crank case pressure puts pressure

The common misconception about valve cover breathers, is the filter media used in your most common breathers is for filtering air into the engine. This is false. The motor experiences constant blow by, therefore, constant pressure is being emitted from the crank case. 

As your "filter" clogs up with oil & dirt during racing conditions, the rate at which the engine can relieve the constant pressure slows down. Increased crank case pressure puts pressure behind the pistons, causing you to lose power the more the filter media gets clogged. 

Our Breathers are TRUE breathers. They have no filter media and are free flowing. No more clogging, no more crankcase pressure, and no more power loss throughout the race. The pathways inside the breather also allow for you to wash your racecar without ever having to take them off. THATS RIGHT, no more duct tape covering your valve covers. 

Will these breathers gain you power? No, but will they let you keep your power throughout the race? Absolutely! 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 75442177752

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4.8 ★★★★★
Based on 6 reviews
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A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Just what I needed
Size: 8.26" x 5.63" x 2.24"
Great value and great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
R
Verified Purchase
Robin Babcock
Houston, US
★★★★★ 5
Perfect fit
Size: 8.26" x 5.63" x 2.24"
A little difficult to access but the University of YouTube helped with that. Filter fit perfectly.
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Reviewed in the United States on May 27, 2026
R
Verified Purchase
R D K
Lake Worth, US
★★★★★ 4
Easy replacement
Size: 8.26" x 5.63" x 2.24"
Reasonable price
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Reviewed in the United States on September 8, 2025
W
Verified Purchase
William Abruzzo
Carnegie, US
★★★★★ 5
Kona Air Filter
Size: 9.33" x 6.29" x 2.08"
Very satisfied, it fit perfectly!
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Reviewed in the United States on March 31, 2026
R
Verified Purchase
rcevans
Whiting, US
★★★★★ 5
Engine air filters are important!
Size: 8.26" x 5.63" x 2.24"
Just like me and you breathing, your car performs better when it can breathe freely and cleanly. My philosophy with an engine air filter is to replace with cheap and often. You can't control the quality of air coming into your system but you can control the filtering, so I'd rather replace the filter on an accelerated schedule with a cheap product than to invest into something more expensive and have it perform dirty for longer than it should. For my Honda CRV 2024 Hybrid, this filter fits snuggly and performs well.
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Reviewed in the United States on December 1, 2025

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