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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Performance Parts & Upgrades

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Carbon Fiber Grille Accent Set - Audi B9 A4/S4

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 10X Entries Into Our F80 M3 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 52%
$576.99

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

$274.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar End Link - Priced Each

ES#2561116 - 8K0411317D - Front Sway Bar End Link - Priced Each - Fits the left and right side - Lemforder - Audi

Fits the left and right side We Price Match - Give Us A Call or Chat!

Brand:
Lemforder - Corporate Logo
ES#:
2561116
Mfg#:
8K0411317D
In Stock
$22.43

This product was last offered at the strikethrough price on
05-26-2026

$18.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Street Shield Hardware Kit

ES#3468577 - 019207ECS02KT - Engine Street Shield Hardware Kit - Replacement hardware kit for your front location ECS Street Shield - ECS - Audi

Replacement hardware kit for your front location ECS Street Shield 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3468577
Mfg#:
019207ECS02KT
In Stock
ON SALE! SAVE 10%
$90.99

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

$81.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 5mm With Conical Seat Bolts

ES#2568311 - 6-ECS-015 - Wheel Spacer & Bolt Kit - 5mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2568311
Mfg#:
6-ECS-015
In Stock
ON SALE! SAVE 25%
$156.99

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

$117.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Rear Subframe Insert Set

ES#5435532 - HW-561 - CTS Turbo Rear Subframe Insert Set - Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbos billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH. - CTS - Audi

Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbo’s billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435532
Mfg#:
HW-561
Ships in 7 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Slotted Brake Rotors - Pair (350x34)

Upgrade your looks and performance with a set of slotted rotors!

Brand:
Emmanuele Design - Corporate Logo
ES#:
4872025
Mfg#:
EMD-35034-PR
Ships in 7 Business Days
$349.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Competition Intercooler Kit

The high performance intercooler core provides a 134% larger frontal area and 105% more volume compared to the stock mounted intercooler. **This kit is for European vehicle fitment**

Brand:
Wagner Tuning - Corporate Logo
ES#:
4489118
Mfg#:
200001120.KITSIN
Ships in 1 Business Day
$1040.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 15mm (1 Pair)

ES#3570123 - MS100168 - Wheel Spacer Kit - 15mm (1 Pair) - 15mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

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

Brand:
APR - Corporate Logo
ES#:
3570123
Mfg#:
MS100168
Ships in 4 Business Days
$129.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 8mm with Black Ball Seat Bolts

ES#2788501 - 002411ECS04A8KT2 - Wheel Spacer & Bolt Kit - 8mm with Black Ball Seat Bolts - Includes everything you need to install our new wheel-centric spacers on two wheels - ECS - Audi

Includes everything you need to install our new wheel-centric spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Designed to be used with OE wheels only

Brand:
ECS - Corporate Logo
ES#:
2788501
Mfg#:
002411ECS04A8KT2
Ships on Jan 4, 2027
ON SALE!
$134.99

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

$128.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

12.5mm Wheel Spacers - Black (Pair)

ES#3476431 - 021460TMS03-02 - 12.5mm Wheel Spacers - Black (Pair) - Lightweight wheel spacers with a machined tab for easy removal - Turner Motorsport - Audi BMW MINI Porsche

Lightweight wheel spacers with a machined tab for easy removal 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3476431
Mfg#:
021460TMS03-02
Ships on Sep 11, 2026
Auto Notify
ON SALE! SAVE 53%
$243.99

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

$113.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Luft-Technik Intake Air Scoop

ES#3183334 - 019848ECS01 - Luft-Technik Intake Air Scoop - Extends farther down behind the grille to direct more air to the intake system - ECS - Audi

Extends farther down behind the grille to direct more air to the intake system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3183334
Mfg#:
019848ECS01
In Stock
ON SALE! SAVE 10%
$135.99

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

$122.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2-Piece Floating Rear Brake Rotor Upgrade - Red Carriers (370x22)

ES#5374284 - 034-301-2015-RED - 2-Piece Floating Rear Brake Rotor Upgrade - Red Carriers (370x22) - Reduces rotational weight by 1.6lbs on each corner and increases rotor diameter from 330mm to 370mm! - 034Motorsport - Audi

Reduces rotational weight by 1.6lbs on each corner and increases rotor diameter from 330mm to 370mm! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
5374284
Mfg#:
034-301-2015-RED
Ships in 2 Business Days
ON SALE! SAVE 14%
$1128.00

This product was last offered at the strikethrough price on
08-17-2026

$964.44 USD
Free Shipping

Carbon Fiber Side Blade Set

ES#3195012 - 019189ecs01KT - Carbon Fiber Side Blade Set - Add a touch of style made with real carbon fiber to your Audi - ECS - Audi

Add a touch of style made with real carbon fiber to your Audi 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3195012
Mfg#:
019189ECS01KT
Ships on Jan 25, 2027
ON SALE! SAVE 10%
$1050.99

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

$945.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Sway Bar Kit

Kit includes 32mm front & 22mm rear sway bars We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
4148346
Mfg#:
72056
Ships in 3 Business Days
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1015.00

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

$913.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Z16 Evolution Ceramic Brake Pads - Front

ES#3557792 - 16-1894 - Z16 Evolution Ceramic Brake Pads - Front - Low-dust and noise-free premium ceramic brake pads - Power Stop - Audi

Low-dust and noise-free premium ceramic brake pads

Brand:
Power Stop - Corporate Logo
ES#:
3557792
Mfg#:
16-1894
In Stock
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charge Pipe Kit

This includes 3 reinforced silicone hoses, and 1 aluminum charge air tube. For vehicles that have the Wagner Competition Intercooler

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017656
Mfg#:
210001120
In Stock at Vendor
$450.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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Manufacturer names and/or part numbers are used only for identification purposes.

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