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Audi S4 Performance Intake Parts & Accessories

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CTS Turbo B5 S4 MAF Housing 85mm (HITACHI)

ES#2862954 - CTSHW040 - CTS Turbo B5 S4 MAF Housing 85mm (HITACHI) - Designed for cars running RS4 or larger turbochargers with upgraded software, and upgraded fuel injectors. - CTS - Audi

Designed for cars running RS4 or larger turbochargers with upgraded software, and upgraded fuel injectors.

Brand:
CTS - Corporate Logo
ES#:
2862954
Mfg#:
CTSHW040
Ships in 7 Business Days
ON SALE! SAVE 15%
$129.99

This product was last offered at the strikethrough price on
08-26-2026

$110.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Inlet Hose

ES#2966730 - 034-112-6013 - Silicone Inlet Hose - Upgraded silicone hose from the MAF sensor to the throttle body - 034Motorsport - Audi

Upgraded silicone hose from the MAF sensor to the throttle body 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966730
Mfg#:
034-112-6013
In Stock
ON SALE! SAVE 10%
$120.00

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

$108.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Intake System Reflect-A-Gold Add-On - Kohlefaser Luft-Technik

ES#3610302 - 024131ecs01aKT - Audi B9 Intake System Reflect-A-Gold Add-On - Kohlefaser Luft-Technik - Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System - ECS - Audi

Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3610302
Mfg#:
024131ECS01AKT
In Stock
ON SALE! SAVE 25%
$47.99

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

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

P34 SuperDuper Insuction Bundle *Scratch And Dent*

ES#5374723 - 034-108-5048 - P34 SuperDuper Insuction Bundle *Scratch And Dent* - 034Motorsport's P34 Cold Air Intake System delivers improved power, sound, and acceleration - Scratch & Dent - Audi

034Motorsport's P34 Cold Air Intake System delivers improved power, sound, and acceleration ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
5374723
Mfg#:
034-108-5048
In Stock
ON SALE! SAVE 34%
$681.00

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

$452.00 USD

Audi B9 S4/S5 Carbon Intake System

ES#4039962 - VWR1241S4 - Audi B9 S4/S5 Carbon Intake System - The highest-performing, race-bred cold-air induction system for the current B9 Audi S4 & S5! - Racingline - Audi

The highest-performing, race-bred cold-air induction system for the current B9 Audi S4 & S5!

Brand:
Racingline - Corporate Logo
ES#:
4039962
Mfg#:
VWR1241S4
Ships in 5 Business Days
ON SALE! SAVE 10%
$1340.99

This product was last offered at the strikethrough price on
08-29-2026

$1206.68 USD

Unitronic Carbon Intake System Without Turbo Inlet

ES#4669287 - UH029-INA - Unitronic Carbon Intake System Without Turbo Inlet - improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. - Unitronic - Audi

improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds.

Brand:
Unitronic - Corporate Logo
ES#:
4669287
Mfg#:
UH029-INA
Ships in 5 Business Days
$1469.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Carbon Fiber Intake System 3.0TFSI B9 S4/S5

ES#4362353 - UH017-INA - Unitronic Carbon Fiber Intake System 3.0TFSI B9 S4/S5 - Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle. - Unitronic - Audi

Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle.

Brand:
Unitronic - Corporate Logo
ES#:
4362353
Mfg#:
UH017-INA
Ships in 5 Business Days
$1469.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Carbon Intake System - TTE720 Turbo Inlet

ES#4669284 - UH030-51-INA - Unitronic Carbon Intake System - TTE720 Turbo Inlet - improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. - Unitronic - Audi

improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds.

Brand:
Unitronic - Corporate Logo
ES#:
4669284
Mfg#:
UH030-51-INA
Ships in 5 Business Days
$2085.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SP Series Cold Air Intake - Wrinkle Black

Better airflow for more power CARB certified for sale in all 50 states

Brand:
Injen - Corporate Logo
ES#:
3086224
Mfg#:
SP3079WB
EO#:
D-476-8
In Stock at Vendor
ON SALE! SAVE 15%
$491.99

This product was last offered at the strikethrough price on
08-31-2026

$417.41 USD
Free Shipping
on orders $49 and up

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 S4/S5 SAI Breather Bracket & Adapter

ES#4900393 - CTS-HW-113&114 - B8 S4/S5 SAI Breather Bracket & Adapter - Looking to clean up the engine bay of your B8/B8.5 Audi S4 or S5? - CTS - Audi

Looking to clean up the engine bay of your B8/B8.5 Audi S4 or S5?

Brand:
CTS - Corporate Logo
ES#:
4900393
Mfg#:
CTS-HW-113&114
Special Order: No Guaranteed ETA
ON SALE! SAVE 15%
$119.99

This product was last offered at the strikethrough price on
08-26-2026

$101.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Intake Parts & Accessories

One of the best modifications you can make early on with your car is upgrading to a performance cold air intake. More cold and dense air supplied to your engine means more fuel and more power!

Let us help you find the parts that fit your Audi

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

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