Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
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Description
AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 2005-2012 Porsche 911 3.8 4WD (997)The 5100 Series shock absorbers for the 2005 2012 Porsche 911 3. 8 4WD (997) utilize inverted upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment. The 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 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]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.6 ★★★★★
Based on 2433 reviews
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Product Reviews
★★★★★ 5
Quality Product, Great Investment
Size: 1 Count (Pack of 1)
Installation was a bit of a hassle, but that has more to do with my skills than the product. Product seems to be of great quality. The stickers included to warn mechanics that the filter is not disposable is a blessing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Easy install
Size: 1 Count (Pack of 1)
Easy install and fits '21 Ford Bronco!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Just as excellent as all other K&N products I've used
Size: 1 Count (Pack of 1)
Great fit, and lot more more robust in build than the OEM filter it replaces. I've replaced the factory cabin air filters in at least 3 vehicles with these, when the time came to replace. Side note: This one went into a 2020 Lincoln Aviator and --consistent with my experience with previous Lincoln models -- the retaining tabs on the filter housing door snapped off when I was trying to remove it. Nothing to do with the K&N filter, but I just don't understand why Lincoln can't design a better housing door mechanism.
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Reviewed in the United States on September 16, 2025
★★★★★ 5
Great fit, great replacement for standard filter.
Size: 1 Count (Pack of 1)
Very tight fit, but fit it does. I put this in my 2.5L Ford Escape Hybrid 2020. Fits tight, but well, so no wiggling.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
Consistently high quality products
Size: 1 Count (Pack of 1)
Have used both their cabin and engine filters for all of my vehicles and will continue with each new vehicle I get. I like that they last a LONG time, are reusable (washable), and help the vehicle run better.
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Reviewed in the United States on July 7, 2025
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