Best in 7 days
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Ships within 48 hours · Estimated delivery Oct 21 - Oct 26
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For Your Every Summer RSVP, with Code: SUMMER15
Description
QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Pigtail Spring, 550 lbs/in Rate - 1958-1972 Chevrolet Biscaynedon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1958 1972 Chevrolet Biscayne to meet the demands required by today's high performance drag race and handling pro touring cars, QA1's multi patent pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- 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.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 1878 reviews
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Product Reviews
★★★★★ 5
Great product saves money.
Fits as it should
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Best Air Filter EVER
I have used these in my cars for years. They improve turbo lag significantly, increase air flow, and just work. What I like best about these, beside the protection they offer the air intake system, is that they truly are a life long product. My last car had one in it for 13 years. With a cleaning every 25K miles as outlines by KN the air filter just continued to work and work.
I recently purchased one for my new Honda CR-V and had it installed at the dealership at 500 miles when I was getting an oil change to flush out the build lube. The mechanic who did the work left me a note that said "great filter, I love these"
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Reviewed in the United States on July 13, 2019
★★★★★ 4
Worth it! Love these filters.
I love K & N air filters and always install them in my cars. This eliminated my cars Turbo lag in my 2019 Honda Civic Ex which has a 1.5L Turbo. Acceleration has improved and makes the car louder (I also have dual exhaust) I love how you don't have to change or clean it for 50,000 miles!! I know it's expensive but will last forever! Only issue was it was very difficult to install and a pain but this is more Hondas fault as I could not fully remove the plastic case where this filter goes under the hood even with tools.
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Reviewed in the United States on November 23, 2019
★★★★★ 5
Works great
Perfect fit
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Reviewed in the United States on August 7, 2025
★★★★★ 5
More power and better mileage
Put this in my 2017 CRV and have noticed much more pickup and better mileage overall. Usually I average 22mpg with mixed driving and this has me hovering around 25mpg and I get to have extra power on top of that. Install was straightforward and a breeze. Whole project is done in ten mins and your car is instantly more fun and getting improved MPGS
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Reviewed in the United States on November 30, 2024
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