Audi Performance Cat-Back Exhausts

This system will increase power, reduce weight, and provide a legendary 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
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.

Brand:

ES#:

3675719

Mfg#:

AU942-QC11

Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary 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#:

3675753

Mfg#:

AUB82-QS11B

The perfect legendary exhaust note for your 8V RS3! 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#:

3675708

Mfg#:

AU8VR-DF4S39C

Gains up to +10 horsepower with an additional +13 ft lbs of torque with a legendary 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#:

3675694

Mfg#:

AU8ST-DS33B

Gains of up to +17 horsepower with an additional +24 ft lbs of torque with a legendary 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#:

4135739

Mfg#:

AUBS4-QS11B

This valved cat back system features wireless remote control and dual chrome silver tips - This system will increase power, reduce weight, and provide a legendary 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#:

3675744

Mfg#:

AU95R-DS45C

$6972.00 USD

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Lifetime Replacement

Hear and feel the power with this free flow system 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
Up to the 2018 model year

Brand:

ES#:

3675776

Mfg#:

AUR13-DC22

This valved cat back system features wireless remote control and quad blue coated tips - This system will increase power, reduce weight, and provide a legendary 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
*Must be used with quad tip rear diffuser from Audi S7 - 4K8807521DRU6*

Brand:

ES#:

4164508

Mfg#:

AUC8T-QS11B

This valved cat back system features wireless remote control and quad carbon tips - This system will increase power, reduce weight, and provide a legendary 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
*Must be used with quad tip rear diffuser from Audi S7 - 4K8807521DRU6*

Brand:

ES#:

4164516

Mfg#:

AUC8T-QC11

Gains up to +10 horsepower with an additional +10 ft lbs of torque with a legendary 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#:

3675785

Mfg#:

AUVS4-QS11C

Gains up to +12 horsepower with an additional +20 ft lbs of torque with a legendary 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#:

3675690

Mfg#:

AU8SS-QC11

This valved cat back system features wireless remote control and quad gold tips - This system will increase power, reduce weight, and provide a legendary 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
*Must be used with quad tip rear diffuser from Audi S7 - 4K8807521DRU6*

Brand:

ES#:

4164513

Mfg#:

AUC8T-QS11G

Gains up to +10 horsepower with an additional +13 ft lbs of torque with a legendary 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#:

3675696

Mfg#:

AU8ST-DS33M

This system will increase power, reduce weight, and provide a legendary 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
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.

Brand:

ES#:

3675676

Mfg#:

A5942-QS11M

Gains of up to +14.2 horsepower with an additional +22 Nm of torque with a legendary 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#:

4159039

Mfg#:

AUBS2-QC11

Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary 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
Will require use of the TTS Quad Exit rear diffuser

Brand:

ES#:

3675682

Mfg#:

AU8JS-QC11