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Audi S4 Performance Parts & Upgrades

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Includes lower control arms, upper adjustable control arms, M12 ball joints and all necessary hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with M12 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159576
Mfg#:
034-401-1055
Ships in 2 Business Days
$1306.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4858310 - 034-108-5047 - X34 SuperDuper Insuction Bundle - Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858310
Mfg#:
034-108-5047
Back Ordered
$1303.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2725288 - KS4B8HDB - Stage 2 Drag Clutch Kit - Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. - South Bend Clutch - Audi

Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
South Bend Clutch - Corporate Logo
ES#:
2725288
Mfg#:
KS4B8HDB
Ships in 1 Business Day
$1302.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4699061 - 034-304-1008 - Replacement Front Rotor Ring Set For ES4429973 - 034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit replacement rings - 034Motorsport - Audi

034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit replacement rings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4699061
Mfg#:
034-304-1008
In Stock
$650.00 USD
Free Shipping
ES#4701581 - ELA-10-285 - Polyurethane Rear Differential Mount - Black (Track) - Eliminate excessive rear differential movement! - Verkline - Audi

Eliminate excessive rear differential movement! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Verkline - Corporate Logo
ES#:
4701581
Mfg#:
ELA-10-285
Ships in 2 Business Days
$325.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748187 - ECS10611KTWB1 - ECS Wheel Spacer & Bolt Kit - 7mm With Black Ball Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2748187
Mfg#:
ECS10611KTWB1
In Stock
ON SALE! SAVE 25%
$132.99

This product was last offered at the strikethrough price on
06-13-2026

$99.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3420220 - 024314ECS01 - Carbon Fiber Grille Accent Set - Audi B9 A4/S4 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
ECS - Corporate Logo
ES#:
3420220
Mfg#:
024314ECS01
In Stock
ON SALE! SAVE 44%
$576.99

This product was last offered at the strikethrough price on
05-02-2026

$323.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3107254 - 14902 - Performance Cat-Back Exhaust System - 3" stainless steel with dual 4.63" polished stainless tips - Borla - Audi

3" stainless steel with dual 4.63" polished stainless tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Borla - Corporate Logo
ES#:
3107254
Mfg#:
14902
In Stock at Vendor
$1289.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3639608 - 034-102-1000 - 034Motorsport Supercharger Heat Exchanger Upgrade Kit - Significantly reduces intake air temperatures - Core size increased From 148 sq. in. to 341 sq. in, and frontal area increased by 130% over stock cooler! - 034Motorsport - Audi

Significantly reduces intake air temperatures - Core size increased From 148 sq. in. to 341 sq. in, and frontal area increased by 130% over stock cooler! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*Please Note: Vehicles equipped with a factory dynamic steering cooler must relocate - Please see description for more info*

Brand:
034Motorsport - Corporate Logo
ES#:
3639608
Mfg#:
034-102-1000
Ships in 2 Business Days
$1288.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4159608 - 034-401-1056 - Track Spec Density Line Control Arm Kit - Front - Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. - 034Motorsport - Audi

Includes lower control arms, upper adjustable control arms, M14 ball joints and all necessary hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with M14 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159608
Mfg#:
034-401-1056
Back Ordered
$1285.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3427372 - 253100BJ - KW H.A.S. - Height Adjustable Spring Kit - Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with factory Electronic Damping Control suspension

Brand:
KW Suspension - Corporate Logo
ES#:
3427372
Mfg#:
253100BJ
Ships in 4 Business Days
$1284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3427369 - 253100BH - KW H.A.S. - Height Adjustable Spring Kit - Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without factory Electronic Damping Control - For models

Brand:
KW Suspension - Corporate Logo
ES#:
3427369
Mfg#:
253100BH
Ships in 4 Business Days
$1284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3427370 - 253100BM - KW H.A.S. - Height Adjustable Spring Kit - Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear - KW Suspension - Audi

Retains the use of your factory shocks while providing the ability to adjust ride height from 0.6" to 1.6" Front 1.0" to 1.8" Rear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without factory Electronic Damping Control - For models

Brand:
KW Suspension - Corporate Logo
ES#:
3427370
Mfg#:
253100BM
Ships in 4 Business Days
$1284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Includes lower control arms, upper adjustable control arms, M12 ball joints and all necessary hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with M12 ball joints

Brand:
034Motorsport - Corporate Logo
ES#:
4159610
Mfg#:
034-401-1057
Back Ordered
$1284.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3536775 - 72361 -  Performance Front & Rear Sway Bar Kit - Includes front adjustable (30mm) and rear (24mm) non-adjustable sway bars with required bushings - H&R - Audi

Includes front adjustable (30mm) and rear (24mm) non-adjustable sway bars with required bushings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits sedan models only

Brand:
H&R - Corporate Logo
ES#:
3536775
Mfg#:
72361
Ships in 3 Business Days
$636.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1260 - 29921 - Sport Spring Set - Unrivaled comfort and performance. Average lowering of 1.3"F 1.3"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.3"F 1.3"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1260
Mfg#:
29921
Ships in 3 Business Days
$315.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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