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
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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
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Lifetime Replacement
Original air filter from the ECS cold air intake kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
9394
Mfg#:
SW-MPO4
ON SALE!
SAVE 40%
$46.99
This product was last offered at the strikethrough price on 05-02-2026
$28.19 USD
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Lifetime Replacement
High flow replacement for your factory air box!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4461190
Mfg#:
FMPAN-0118
$65.00 USD
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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 06-03-2026
$79.00 USD
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Lifetime Replacement
OIl free dry synthetic media, allowing significant airflow over stock paper media
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518077
Mfg#:
31-10172
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 05-27-2026
$76.00 USD
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Lifetime Replacement
5 layers of cotton gauze filtration material allow maximum airflow
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
518076
Mfg#:
30-10172
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 05-27-2026
$71.00 USD
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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
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Lifetime Replacement
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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#:
4030746
Mfg#:
15WB-427
$69.99 USD
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Lifetime Replacement
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
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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 06-03-2026
$76.00 USD
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Lifetime Replacement
Featuring a Pro 5 R oiled filter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2816744
Mfg#:
30-10254
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$88.75
This product was last offered at the strikethrough price on 01-28-2026
$71.00 USD
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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
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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
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Lifetime Replacement
Inverted filter with 3.0" inlet
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2863067
Mfg#:
RR-3003
$94.99
This product was last offered at the strikethrough price on 01-20-2026
$90.99 USD
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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 06-03-2026
$85.00 USD
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Lifetime Replacement