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Audi S4 Performance Parts & Upgrades

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ES#4043315 - 2660-13028 - AWE S-FLO Carbon Intake - Audi B8 3.0T / 3.2L - Gains of 7 HP and 6 ft-lbs of torque. Allows 34% more airflow over stock, with eye catching carbon fiber engine bay upgrade. - AWE - Audi

Gains of 7 HP and 6 ft-lbs of torque. Allows 34% more airflow over stock, with eye catching carbon fiber engine bay upgrade. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4043315
Mfg#:
2660-13028
Ships on Jul 7, 2026
$665.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3974222 - 785711/4B91 - Build-Your-Own Air Lift Performance Kit - 1/4" Lines - Choose your struts, management, tank option and more - Air Lift - Audi

Choose your struts, management, tank option and more affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 48.5mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3974222
Mfg#:
785711/4B91
Ships in 4 Business Days
Starting at $3276.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3972075 - 78571 - Front Performance Air Ride Kit  - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 48.5mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3972075
Mfg#:
78571
Ships in 5 Business Days
$1386.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3974223 - 785713/8B91 - Build-Your-Own Air Lift Performance Kit - 3/8" Lines - Choose your struts, management, tank option and more - Air Lift - Audi

Choose your struts, management, tank option and more affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 48.5mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3974223
Mfg#:
785713/8B91
Ships in 4 Business Days
Starting at $3276.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3974232 - 785711/4B92 - Build-Your-Own Air Lift Performance Kit - 1/4" Lines - Choose your struts, management, tank option and more - Air Lift - Audi

Choose your struts, management, tank option and more affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 53mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3974232
Mfg#:
785711/4B92
Ships in 4 Business Days
Starting at $3276.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3974233 - 785713/8B92 - Build-Your-Own Air Lift Performance Kit - 3/8" Lines - Choose your struts, management, tank option and more - Air Lift - Audi

Choose your struts, management, tank option and more affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 53mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3974233
Mfg#:
785713/8B92
Ships in 4 Business Days
Starting at $3276.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3971181 - 755581/4B8 - Build-Your-Own Air Lift Performance Kit - 1/4" Lines - Choose your struts, management, tank option and more - Air Lift - Audi

Choose your struts, management, tank option and more affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Air Lift - Corporate Logo
ES#:
3971181
Mfg#:
755581/4B8
Ships in 4 Business Days
Starting at $2720.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2593892 - 50310KT - Cup Kit - H&R Springs With Koni Shocks & Struts - Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R - Assembled By ECS - Audi

Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Cabrio models only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593892
Mfg#:
50310KT
Ships in 4 Business Days
$1135.99

This product was last offered at the strikethrough price on
02-10-2026

$1134.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4779912 - 24-274876KT - B8 Suspension Cup-Kit - B8 Performance Plus dampers paired with H&R Sport Springs - Assembled By ECS - Audi

B8 Performance Plus dampers paired with H&R Sport Springs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with sport suspension and without electronic suspension (49mm diameter strut)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4779912
Mfg#:
24-274876KT
In Stock at Vendor
$1082.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2593890 - 29257KT - Cup Kit - H&R Springs With Koni Shocks & Struts - Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R - Assembled By ECS - Audi

Unrivaled comfort and performance. Average lowering of 1.2"F 1.2"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Avant models only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593890
Mfg#:
29257KT
Ships in 4 Business Days
$1136.99

This product was last offered at the strikethrough price on
02-10-2026

$1134.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4699049 - A1-311KT - Front And Rear Slotted Two-Piece Rotors - Direct bolt-on replacement - Assembled By ECS - Audi

Direct bolt-on replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4699049
Mfg#:
A1-311KT
In Stock at Vendor
$2145.00 USD
This product is lifetime replacement eligible Partial Replacement
ES#3675621 - S-05E-BR - BR Series Coilover Suspension Kit - Extreme Low  - Featuring 30 levels of adjustment and performance spring rates and valving - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Please allow 4-6 weeks for build time

Brand:
BC Racing - Corporate Logo
ES#:
3675621
Mfg#:
S-05E-BR
Ships on Aug 5, 2026
$1345.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4872465 - S-05-DS - DS Series Coilover Suspension Kit - Featuring 30 levels of adjustment and increased damping force at low speed piston velocities - BC Racing - Audi

Featuring 30 levels of adjustment and increased damping force at low speed piston velocities affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BC Racing - Corporate Logo
ES#:
4872465
Mfg#:
S-05-DS
Ships on Aug 5, 2026
$1445.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4730401 - EBFI77-MB6-802 - BFI 4.2 V8 Complete Replacement Engine Mount - Stage 2 - Priced Each - Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design - Black Forest Industries - Audi

Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
4730401
Mfg#:
EBFI77-MB6-802
Ships on Jul 8, 2026
$239.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4730400 - EBFI77-MB6-801 - BFI 4.2 V8 Complete Replacement Engine Mount - Stage 1 - Priced Each - Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design - Black Forest Industries - Audi

Replace your old, tired, hydraulic engine mount with BFI's proprietary bushing and bracket/Cup design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
4730400
Mfg#:
EBFI77-MB6-801
Ships on Jul 8, 2026
$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4265325 - 1N2.9059A5 - Brembo GT Front Big Brake Kit - 2 Piece Slotted Rotors (380x34) - Featuring Yellow 6 piston calipers, stainless brake lines and Brembo Sport brake pads - Brembo - Audi

Featuring Yellow 6 piston calipers, stainless brake lines and Brembo Sport brake pads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Brembo - Corporate Logo
ES#:
4265325
Mfg#:
1N2.9059A5
Ships in 4 Business Days
$4895.00 USD
Free Shipping
on orders $49 and up

More About Performance Parts & Upgrades

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