Audi S4 Performance Catalytic Converters

Connect your exhaust with 2.5" CB Connection Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4781639

Mfg#:

JHM-B8DPXHFCIBS2

Ceramic Coated Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4164586

Mfg#:

AU94S-CDC

T304 Stainless Steel high flow front pipe kit replaces factory secondary catalytic converters Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3644159

Mfg#:

777512

Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4905571

Mfg#:

B930TDPC

$779.00 USD

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Lifetime Replacement

T304 Stainless Steel front pipe kit includes high flow secondary catalytic converters Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3644165

Mfg#:

777532

304 Stainless high-flow front metallic catalytic converter/downpipe - 100% handcrafted in Italy! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3644162

Mfg#:

777521

Includes left and right side metallic high-flow sport cats and connecting pipes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3438681

Mfg#:

767702KT

Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4164584

Mfg#:

AU94S-CD

Built as a direct OEM replacement Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4781640

Mfg#:

JHM-B8DPXHFC30T-