Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
AST 07/2021- BMW 4 Lowering Springs - 30mm/30mmThe AST Lowering Springs reduce your cars center of gravity while maintaining the comfort of OEM springs. Designed as a direct OEM replacement, they are vehicle specific and crafted with premium materials on top quality Wafios coiling machines. Their progressive design balances a lowered stance with enhanced performance. With compatibility across over 3,000 models from 1966 upwards, these springs suit a wide range of vehicles. Backed by a lifetime
The AST Lowering Springs reduce your car’s center of gravity while maintaining the comfort of OEM springs. Designed as a direct OEM replacement, they are vehicle-specific and crafted with premium materials on top-quality Wafios coiling machines. Their progressive design balances a lowered stance with enhanced performance. With compatibility across over 3,000 models from 1966 upwards, these springs suit a wide range of vehicles. Backed by a lifetime warranty against breakage, they offer reliability and peace of mind on every drive.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
- 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
4.6 ★★★★★
Based on 1284 reviews
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Product Reviews
★★★★★ 1
Doesn’t Cut Steel Belts in Tires
Size: CB-M03H
Doesn’t cut steel belts in tires to facilitate repair.
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Reviewed in the United States on May 5, 2025
★★★★★ 5
Pattern and roughness appropriate but still need to test
I haven't had a flat tire yet, so I also haven't had occasion to test these but they seem like great value for an extremely low price (especially versus a new tire.) I have handled them to try and gauge how quickly they'd smooth a hole, and they're rough / sharp and aggressive enough that I expect them to work quickly and well on not only tires, but on a variety of other materials. This pattern in particular should allow material to be shed and then passed backward pretty easily without clogging things up or slowing them down. If you've bothered to buy a patch kit for your tires, you really ought to have one of these around.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Thank you!
Size: 1/4-Inch - With Adapter
Thank you!
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Reviewed in the United States on April 27, 2023
★★★★★ 5
Makes plugging easy
Size: 1/4-Inch - With Adapter
Screw that T handle punch tool!!
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Reviewed in the United States on April 4, 2021
★★★★★ 5
as advertised
As advertised
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Reviewed in the United States on June 2, 2026
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