B9 S4 3.0T Best Performance Upgrades for your WIsh List
Give your Audi upgrades it deserves that your wallet (or significant other) won�t fight. This is our list of the top performance parts to improve your Audi on a budget so you don�t have to compromise between building the car you picture in your head and saving money for your future. Check out our selection of suspension, software, exhaust, intake, visual upgrades, and more, all designed to fit your Audi and your budget.
This is our list of the top performance parts
Fits:
B9 S4 3.0T
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
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For models with factory Electronic Damping Control suspension
For models with factory Electronic Damping Control suspension
Brand:
ES#:
3427372
Mfg#:
253100BJ
Sport Springs - Set
Finally, A performance lowering spring for your B9 chassis Audi - Offering unrivaled comfort and performance
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We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3187941
Mfg#:
50357
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Availability:
In Stock
In Stock
H&R VTF Adjustable Lowering Springs
More lowering, more features, and more personalization! Average Lowering of 0.75 - 1.6" front & rear.
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We Price Match - Give Us A Call or Chat! Fits both models with adaptive damping suspension and without - Lowering height will vary between suspension ty
We Price Match - Give Us A Call or Chat! Fits both models with adaptive damping suspension and without - Lowering height will vary between suspension ty
Brand:
ES#:
3479162
Mfg#:
23007-1
Dynamic+ Lowering Springs
Engineered to improve handling and deliver superb ride quality!
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Brand:
ES#:
3491530
Mfg#:
034-404-1005
Front 2-Piece Brake Rotors - Pair (350x34)
Direct bolt-on replacement - 16% less weight!
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Brand:
ES#:
3493799
Mfg#:
023938ECS01KT
Rear 2-Piece Brake Rotors - Pair (330x22)
Direct bolt-on replacement - 15% less weight!
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Brand:
ES#:
3493800
Mfg#:
023944ECS01KT
Rear 2-Piece Scalloped Brake Rotors - Pair (330x22)
Direct bolt-on upgrade to Tru-Float scalloped style rotors. 20% less weight!
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Brand:
ES#:
3520785
Mfg#:
023950ECS01KT
Front 2-Piece Scalloped Brake Rotors - Pair (350x34)
Direct bolt-on upgrade to Tru-Float scalloped style rotors. Over 15% less weight!
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Brand:
ES#:
3559513
Mfg#:
023940ECS01KT
Transmission Mount Bushing Insert Kit
Decrease transmission mount slop for better drivetrain response!
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Brand:
ES#:
3170153
Mfg#:
019209ECS01
Billet Aluminum Transmission Mount Insert
This billet aluminum insert is designed to fill the large void in the factory transmission mount
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Brand:
ES#:
3176060
Mfg#:
034-509-4053
Complete Drivetrain Mount Insert Kit
Decrease slop and increase drivetrain rigidity and response!
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Brand:
ES#:
3194637
Mfg#:
019208ECS01KT1
Leyo V4 Billet Paddle Shifter Extensions - Black
High Performance Billet 6061 T6 Aluminum paddle extensions
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Brand:
ES#:
3559476
Mfg#:
PA004B
Luft-Technik Intake Air Scoop
Extends farther down behind the grille to direct more air to the intake system
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Brand:
ES#:
3183334
Mfg#:
019848ECS01
Silicone Turbo Inlet Hose - Audi B9 S4/S5
Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability!
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Brand:
ES#:
3420204
Mfg#:
024360ECS01
Active Valve Control System
Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems
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Brand:
ES#:
3426977
Mfg#:
SSXAU677
Carbon Fiber Intake Scoop & Overlay Kit
Full solution to give your factory intake system a performance look!
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Brand:
ES#:
3476954
Mfg#:
024641ECS01KT
JB4 Bluetooth Wireless Connect Kit - Pinned Power Wire
Wirelessly connect your JB4 to your phone!
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For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Brand:
ES#:
3514868
Mfg#:
JB4-SPWCK-F
B9 A4/S4 Carbon Fiber Inlet Scoop
Channel air to your intake with performance syle!
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Brand:
ES#:
3537354
Mfg#:
024641ECS02KT
Luft-Technik B9 S4 Front Mount Intercooler
Reduce restrictions and increase cooling!
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Brand:
ES#:
3537699
Mfg#:
019219ECS01AKT
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Availability:
Ships on Sep 23, 2026
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Ships on Sep 23, 2026
ECS Tuning Billet Engine Oil Dipstick - Black Anodized
A beautiful addition and durable upgrade for your engine
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Brand:
ES#:
3545565
Mfg#:
023954ECS01-02
Atmospheric Dump Valve - Black
Prevent boost leaks with full billet construction
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Brand:
ES#:
3612126
Mfg#:
FMDV13A
APR Front Mount Intercooler System - B9 S4/S5 3.0T
Massive front mounted upgrade that dramatically reduces intake air temperature (IAT), minimizes heat soak, and provides increased performance!
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Brand:
ES#:
3613172
Mfg#:
IC100023
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Availability:
Ships in 2 Business Days
Ships in 2 Business Days
Audi B9 S4 Intercooler Charge Pipe Kit
Increase intake air flow with our high flow charge pipes for your ECS Tuning or OEM intercooler!
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Brand:
ES#:
3638868
Mfg#:
023880ECS01AKT
Audi B9 S4 Luft-Technik Intercooler and Charge Pipe Kit
Full kit to upgrade your charge pipes and front mount intercooler
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Brand:
ES#:
3639384
Mfg#:
023880ECS01AKT1
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Availability:
Ships on Sep 23, 2026
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Ships on Sep 23, 2026
B9 S4 3.0T Center X-Pipe
Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note
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Brand:
ES#:
3521607
Mfg#:
024365ECS01KT
CTS Turbo B9 S4/S5 High Flow Cat
CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential!
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Brand:
ES#:
4043052
Mfg#:
CTS-EXH-TP-0009C
Carbon Fiber Trunk Spoiler - Audi B9 A4/S4
Add a touch of style and real carbon fiber to your Audi
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Brand:
ES#:
3141741
Mfg#:
019220ECS01A
Audi B9 S4 Carbon Fiber Rear Diffuser
Hand-laid carbon fiber to upgrade your exterior styling
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Brand:
ES#:
3247439
Mfg#:
023797ECS01
Carbon Fiber Mirror Cap Set - Audi B9 A4/A5/S4/S5
With Lane Change Assist
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Brand:
ES#:
3411932
Mfg#:
024564ECS01