Locking nut with flange. M8x1.25mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Locking nut that secures catalytic converter to downpipe
Install new hardware with your new parts. M10x1.5
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! Secures the catalytic converter to the turbocharger
Includes the necessary hardware and gaskets to install the catalytic converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3028723
Mfg#:
8D0253115KT3
In Stock
ON SALE!
SAVE 21%
$59.99
This product was last offered at the strikethrough price on 05-02-2026
Contains all of the hardware you need to install a new catalytic converter on your A4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2575492
Mfg#:
1H0253115DKT1
In Stock
ON SALE!
SAVE 21%
$69.99
This product was last offered at the strikethrough price on 05-02-2026
Keep your emissions in check
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Not legal for sale, installation or use on vehicles registered in the state of California or Colorado* New York & Federal Compliant. Not for use in California or Colorado.
Seals the downpipe to the catalytic converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Install new hardware with your new parts. M8x35
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Secures the downpipe to the catalytic converter
Install new hardware with your new parts. M10
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Secures the catalytic converter to the turbocharger
Brand:
ES#:
4817
Mfg#:
N90369001
In Stock
31% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$17.45
This product was last offered at the strikethrough price on 06-17-2026
Located between the turbo & catalytic converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4147623
Mfg#:
8E0253115D
In Stock
$8.99
This product was last offered at the strikethrough price on 03-24-2026
Seals the down pipe to the catalytic converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
2748376
Mfg#:
1H0253115
In Stock at Vendor
$13.99
This product was last offered at the strikethrough price on 05-07-2026
Seals the downpipe to the catalytic converter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Brand:
ES#:
2717942
Mfg#:
1H0253115
Back Ordered
$5.99
This product was last offered at the strikethrough price on 04-15-2026
Lifetime Replacement
