Locking nut with flange. M8x1.25mm
Locking nut that secures catalytic converter to downpipe
- Brand:
-
- ES#:
- 471981
- Mfg#:
-
N91130801
$1.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
2.25" inlet/outlet, 14" length of converter itself, 6" width & 4" height
- Brand:
-
- ES#:
- 4005308
- Mfg#:
-
602205
$97.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Price includes a $910.00 refundable core charge
From the 2010 model year
- Brand:
-
- ES#:
- 2538179
- Mfg#:
-
8K0254250KXKT
$3911.99 USD
Free Shipping
Lifetime Replacement
Includes a $210 refundable core charge
Up to the 2012 model year
- Brand:
-
- ES#:
- 2739743
- Mfg#:
-
8K0254253HXKT
$3787.99 USD
Free Shipping
Lifetime Replacement
Price includes $300 refundable core charge
From the 2010 model year
- Brand:
-
- ES#:
- 2538178
- Mfg#:
-
8K0254200KXKT
$3590.99 USD
Free Shipping
Lifetime Replacement
Keep your emissions in check
New York & Federal Compliant
- Brand:
-
- ES#:
- 3412016
- Mfg#:
-
52352
$1320.00 USD
Free Shipping
Lifetime Replacement
Contains all of the hardware you need to install new catalytic converters on your Audi
10X Entries For Our 25th Anniversary Sweepstakes!
- Brand:
-
- ES#:
- 2576283
- Mfg#:
-
8K0253115AKT2
ON SALE!
SAVE 12%
$98.99
This product was last offered at the strikethrough price on
05-02-2026
$86.85 USD
Free Shipping
Lifetime Replacement
Seals the catalytic converter to the downpipe
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
- Brand:
-
- ES#:
- 4716227
- Mfg#:
-
8K0253115D
$11.99
This product was last offered at the strikethrough price on
04-20-2026
$9.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Contains all of the hardware you need to install a new catalytic converter
10X Entries For Our 25th Anniversary Sweepstakes!
- Brand:
-
- ES#:
- 2575495
- Mfg#:
-
8K0253115KT2
ON SALE!
SAVE 20%
$72.99
This product was last offered at the strikethrough price on
05-02-2026
$58.36 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Install new hardware with your new parts. M10
Secures the catalytic converter to the turbocharger
- Brand:
-
- ES#:
- 472727
- Mfg#:
-
WHT002514
$8.79 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Includes the flex section
- Brand:
-
- ES#:
- 2607081
- Mfg#:
-
8K0253102AC
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1427.99
This product was last offered at the strikethrough price on
07-23-2026
$1355.99 USD
Lifetime Replacement
Located between the catalytic converter and exhaust center section - Includes flex section
- Brand:
-
- ES#:
- 2600549
- Mfg#:
-
8K0253102S
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1427.99
This product was last offered at the strikethrough price on
07-23-2026
$1355.99 USD
Lifetime Replacement
Allows the manifold to be secured to the cylinder head. M8x28
- Brand:
-
- ES#:
- 1878317
- Mfg#:
-
N91187001
$7.47 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Seals the manifolds to the catalytic converters
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
- Brand:
-
- ES#:
- 4501325
- Mfg#:
-
8K0253115A
$6.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
Keep your emissions in check
Not for sale or use in the state of California.
New York & Federal Compliant
- Brand:
-
- ES#:
- 2975031
- Mfg#:
-
49136
$1142.00 USD
Free Shipping
Lifetime Replacement
Keep your emissions in check
Not for sale or use in the state of California.
New York & Federal Compliant
- Brand:
-
- ES#:
- 2975030
- Mfg#:
-
49135
$932.00 USD
Free Shipping
Lifetime Replacement
