High flow, reusable air filter. Used as a replacement filter to an ECS intake system or for your custom intake project. 4.5" Base OD / 6" Filter Height / 3.5" Top OD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3697634
Mfg#:
003675ECS03-02
ON SALE!
SAVE 30%
$56.99
This product was last offered at the strikethrough price on 05-02-2026
$39.89 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Bolt on better performance and fuel efficiency.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
1876583
Mfg#:
E-2021
$68.99 USD
Add to Cart
Free Shipping
Lifetime Replacement
High flow filter replacement to get your engine breathing better than new!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4461016
Mfg#:
012054LA27-DRY
ON SALE!
SAVE 20%
$69.99
This product was last offered at the strikethrough price on 05-02-2026
$55.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement filter with 3.5" inlet, 6"base, 4.75" top, 6" height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518380
Mfg#:
21-35010
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$95.00
This product was last offered at the strikethrough price on 06-02-2026
$76.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
More air flow means more power! Direct replacement with long service life.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2623151
Mfg#:
PP1389
Limited Qty Sale
$49.99
This product was last offered at the strikethrough price on 05-02-2026
$44.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement filter with 3.0"inlet, 5"base, 3.5"top, and 7"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518459
Mfg#:
24-30003
21% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$77.99
This product was last offered at the strikethrough price on 05-27-2026
$62.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Replacement filter with 4.5"inlet, 6"base, 4.75"top, and 5"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518390
Mfg#:
21-45505
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$82.99
This product was last offered at the strikethrough price on 05-27-2026
$66.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Replacement filter with 3.5"inlet, 6"base, 4"top, and 7"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518479
Mfg#:
24-35007
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$98.99
This product was last offered at the strikethrough price on 06-02-2026
$79.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Replacement filter with 3.0"inlet, 6"base, 4.75"top, and 6"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518461
Mfg#:
24-30017
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$88.99
This product was last offered at the strikethrough price on 01-28-2026
$71.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Request In-Stock Notification
An error has occurred. Please try again.
Oil free gauze filter significantly improves airflow over stock paper media
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
264129
Mfg#:
31-10016
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$95.00
This product was last offered at the strikethrough price on 01-28-2026
$76.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Replacement filter with 3"inlet, 5"base, 3.5"top, and 7"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518374
Mfg#:
21-30003
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$95.00
This product was last offered at the strikethrough price on 06-02-2026
$76.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Replacement inverted filter with 3"inlet, 6"base, 4.75"top, and 5"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3020716
Mfg#:
TF-9025D
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$82.99
This product was last offered at the strikethrough price on 01-28-2026
$66.00 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
High grade drop-in filter for your Audi, designed for road or competition use
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4030771
Mfg#:
15WB-568
$64.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement filter with 3"inlet, 6"base, 4.75"top, and 7"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518375
Mfg#:
21-30018
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$106.25
This product was last offered at the strikethrough price on 06-02-2026
$85.00 USD
Add to Cart
Free Shipping
Lifetime Replacement
Lifetime high-flow air filter that's a direct replacement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3195200
Mfg#:
FB159/01
$99.00 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement filter with 3.5"inlet, 6"base, 4.75"top, and 8"height
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518484
Mfg#:
24-35012
21% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$106.99
This product was last offered at the strikethrough price on 06-02-2026
$85.00 USD
Add to Cart
Free Shipping
Lifetime Replacement