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Audi S4 Performance Parts & Upgrades

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APR Wheel Spacer Kit With Lug Bolts - 20mm Thick - 66.5mm CB - 47mm Bolts

ES#5505052 - KT100024 - APR Wheel Spacer Kit With Lug Bolts - 20mm Thick - 66.5mm CB - 47mm Bolts - 20mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. - APR - Audi

20mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5505052
Mfg#:
KT100024
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$201.99

This product was last offered at the strikethrough price on
09-28-2026

$181.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 8mm Thick - 66.5mm CB - 35mm Bolts

ES#5507076 - KT100019 - APR Wheel Spacer Kit With Lug Bolts - 8mm Thick - 66.5mm CB - 35mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507076
Mfg#:
KT100019
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$140.99

This product was last offered at the strikethrough price on
09-28-2026

$126.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 7mm Thick - 66.5mm CB - 35mm Bolts

ES#5507164 - KT100018 - APR Wheel Spacer Kit With Lug Bolts - 7mm Thick - 66.5mm CB - 35mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507164
Mfg#:
KT100018
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$135.99

This product was last offered at the strikethrough price on
09-28-2026

$122.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 7mm Thick - 57.1mm CB - 35mm Bolts

ES#5507165 - KT100006 - APR Wheel Spacer Kit With Lug Bolts - 7mm Thick - 57.1mm CB - 35mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507165
Mfg#:
KT100006
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$135.99

This product was last offered at the strikethrough price on
09-28-2026

$122.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 8mm Thick - 57.1mm CB - 35mm Bolts

ES#5507083 - KT100007 - APR Wheel Spacer Kit With Lug Bolts - 8mm Thick - 57.1mm CB - 35mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507083
Mfg#:
KT100007
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$140.99

This product was last offered at the strikethrough price on
09-28-2026

$126.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 6mm Thick - 66.5mm CB - 35mm Bolts

ES#5507168 - KT100017 - APR Wheel Spacer Kit With Lug Bolts - 6mm Thick - 66.5mm CB - 35mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507168
Mfg#:
KT100017
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$130.99

This product was last offered at the strikethrough price on
09-28-2026

$117.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PR Wheel Spacer Kit With Lug Bolts - 2mm Thick - 57.1mm CB - 30mm Bolts

ES#5507181 - KT100001 - PR Wheel Spacer Kit With Lug Bolts - 2mm Thick - 57.1mm CB - 30mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507181
Mfg#:
KT100001
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$102.99

This product was last offered at the strikethrough price on
09-28-2026

$92.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 15mm Thick - 57.1mm CB - 45mm Bolts

ES#5504932 - KT100010 - APR Wheel Spacer Kit With Lug Bolts - 15mm Thick - 57.1mm CB - 45mm Bolts - 15mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. - APR - Audi

15mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5504932
Mfg#:
KT100010
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$189.99

This product was last offered at the strikethrough price on
09-28-2026

$170.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 20mm Thick - 57.1mm CB - 47mm Bolts

ES#5507080 - KT100012 - APR Wheel Spacer Kit With Lug Bolts - 20mm Thick - 57.1mm CB - 47mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507080
Mfg#:
KT100012
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$181.99

This product was last offered at the strikethrough price on
09-28-2026

$163.75 USD
Free Shipping

APR Wheel Spacer Kit With Lug Bolts - 17mm Thick - 57.1mm CB - 45mm Bolts

ES#5507150 - KT100011 - APR Wheel Spacer Kit With Lug Bolts - 17mm Thick - 57.1mm CB - 45mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi Volkswagen

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507150
Mfg#:
KT100011
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$167.99

This product was last offered at the strikethrough price on
09-28-2026

$151.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 5mm Thick - 66.5mm CB - 32mm Bolts

ES#5507163 - KT100016 - APR Wheel Spacer Kit With Lug Bolts - 5mm Thick - 66.5mm CB - 32mm Bolts - APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) - APR - Audi

APR Wheel Spacers (Set of 2) and Extended Lug Bolts (Set of 10) Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5507163
Mfg#:
KT100016
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$116.99

This product was last offered at the strikethrough price on
09-28-2026

$105.26 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Wheel Spacer Kit With Lug Bolts - 12mm Thick - 66.5mm CB - 40mm Bolts

ES#5504935 - KT100021 - APR Wheel Spacer Kit With Lug Bolts - 12mm Thick - 66.5mm CB - 40mm Bolts - 12mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. - APR - Audi

12mm spacers to perfectly dial in your stance or clear your big brake kit! Includes 10 wheel bolts. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5504935
Mfg#:
KT100021
Ships on Nov 18, 2026
ON SALE! SAVE 10%
$181.99

This product was last offered at the strikethrough price on
09-28-2026

$163.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4 Carbon Fiber Exterior Package

ES#5456442 - 023797ECS01KT2 - Audi B9 S4 Carbon Fiber Exterior Package - Experience a full exterior transformation! This bundle pairs our carbon fiber front lip spoiler, rear diffuser, and rear trunk lid spoiler at a fraction of retail price. - Enthusiast Bundles - Audi

Experience a full exterior transformation! This bundle pairs our carbon fiber front lip spoiler, rear diffuser, and rear trunk lid spoiler at a fraction of retail price. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
Save an additional $100 with this Enthusiast Bundle!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
5456442
Mfg#:
023797ECS01KT2
Ships on Nov 30, 2026
ON SALE! SAVE 29%
$2599.99

This product was last offered at the strikethrough price on
05-06-2026

$1849.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MST Performance Cold Air Intake System

Improves throttle response, and peak power while adding a glorious and aggressive tone under the hood.

Brand:
MST Performance - Corporate Logo
ES#:
4440482
Mfg#:
AD-A406
Special Order: No Guaranteed ETA
$426.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8 Suspension Cup-Kit

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 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with sport suspension and without electronic suspension (49mm diameter strut)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4779912
Mfg#:
24-274876KT
Ships on Jan 28, 2027
$1285.00

This product was last offered at the strikethrough price on
07-01-2026

$1211.99 USD
This product is lifetime replacement eligible Lifetime Replacement

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