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Audi S4 Performance Intake Systems

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CTS Turbo Air Intake System - True 3.5" Velocity Stack

ES#4017702 - CTS-IT-300R - CTS Turbo Air Intake System - True 3.5" Velocity Stack - NEW UPDATED DESIGN! True 3.5 intake for maximum airflow - 3.5" mandrel bent piping with huge 6 velocity stack air filter! - CTS - Audi

NEW UPDATED DESIGN! True 3.5″ intake for maximum airflow - 3.5" mandrel bent piping with huge 6″ velocity stack air filter! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4017702
Mfg#:
CTS-IT-300R
In Stock
$329.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

S34 SuperDuper Insuction Bundle

ES#4733652 - 034-108-5046 - S34 SuperDuper Insuction Bundle - Delivers improved power, sound, and acceleration to Audi B9/B9.5 S4/S5 owners within a clean, cost-effective package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to Audi B9/B9.5 S4/S5 owners within a clean, cost-effective package. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4733652
Mfg#:
034-108-5046
In Stock
$613.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Polymer Air Intake System - B9/B9.5 S4 & S5 3.0T

ES#4668695 - IEINCK5 - IE Polymer Air Intake System - B9/B9.5 S4 & S5 3.0T - Up to 19hp & 21ft-lbs over stock! - Integrated Engineering - Audi

Up to 19hp & 21ft-lbs over stock! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4668695
Mfg#:
IEINCK5
In Stock
$522.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VW MK8 2.0T / Audi 3.0T Diverter Valve Spacer - Clear Anodized

ES#4033242 - 028495ECS01 - VW MK8 2.0T / Audi 3.0T Diverter Valve Spacer - Clear Anodized - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4033242
Mfg#:
028495ECS01
In Stock
ON SALE! SAVE 20%
$87.99

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

$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance High-Flow Air Intake System - 6" Velocity Stack

ES#4045629 - CTS-IT-290R - Performance High-Flow Air Intake System - 6" Velocity Stack - Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter! - CTS - Audi

Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4045629
Mfg#:
CTS-IT-290R
Back Ordered
Auto Notify
$299.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Luft-Technik Intake System - Silicone Inlet - Audi B8 S4/S5 3.0T

ES#2992531 - 007344ECS01 - Luft-Technik Intake System - Silicone Inlet - Audi B8 S4/S5 3.0T - Engineered for increased engine performance with show quality looks - ECS - Audi
ECS Tuning recommends this product.

Engineered for increased engine performance with show quality looks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992531
Mfg#:
007344ECS01
In Stock
ON SALE! SAVE 38%
$526.99

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

$328.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Cold Air Intake System

ES#3988103 - IEINCG2A - IE Cold Air Intake System - Add horsepower, torque, sound, and throttle response to your B8/B8.5 S4/S5 - Featuring all new aluminum inlet pipe! - Integrated Engineering - Audi

Add horsepower, torque, sound, and throttle response to your B8/B8.5 S4/S5 - Featuring all new aluminum inlet pipe! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3988103
Mfg#:
IEINCG2A
Ships in 9 Business Days
Auto Notify
$439.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

P34 SuperDuper Insuction Bundle

ES#4858324 - 034-108-5048 - P34 SuperDuper Insuction Bundle - 034Motorsport's P34 Cold Air Intake System delivers improved power, sound, and acceleration - 034Motorsport - Audi

034Motorsport's P34 Cold Air Intake System delivers improved power, sound, and acceleration affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4858324
Mfg#:
034-108-5048
In Stock
$702.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6/B7 S4 Luft-Technik Performance Intake System

ES#4845350 - 012267LA01 - B6/B7 S4 Luft-Technik Performance Intake System - Engineered for maximum power and induction sound! Featuring a sealed aluminum heatshield, silicone inlet hose, and a high-flow conical air filter. - ECS - Audi

Engineered for maximum power and induction sound! Featuring a sealed aluminum heatshield, silicone inlet hose, and a high-flow conical air filter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4845350
Mfg#:
012267LA01
In Stock
ON SALE! SAVE 25%
$471.99

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

$353.62 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Intake System - 3.0T S4/S5

ES#4876483 - CI100072 - APR Intake System - 3.0T S4/S5 - Add a sporty, refined tone without being overbearing - APR - Audi

Add a sporty, refined tone without being overbearing Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4876483
Mfg#:
CI100072
In Stock
11% off MSRP

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

$633.99

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

$562.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Diverter Valve - Polished

ES#3183558 - 034-145-5000-ALU - Billet Diverter Valve - Polished - High-performance spring and piston design is both durable and a performer! - 034Motorsport - Audi Volkswagen

High-performance spring and piston design is both durable and a performer! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
034Motorsport - Corporate Logo
ES#:
3183558
Mfg#:
034-145-5000-ALU
In Stock
$128.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

008 Premium Diverter Valve - *Limited Edition* Red*

ES#4001248 - FMDV008R - 008 Premium Diverter Valve - *Limited Edition* Red* - Smaller, tougher and tuneable! *Limited edition red finish* - Forge - Audi Volkswagen Porsche

Smaller, tougher and tuneable! *Limited edition red finish* affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Limited Editions ONLY at ECS Tuning : Limited Stock so Act Fast

Brand:
Forge - Corporate Logo
ES#:
4001248
Mfg#:
FMDV008R
Ships in 4 Business Days
$180.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S34 Carbon Fiber Intake

ES#4304717 - 034-108-1027 - S34 Carbon Fiber Intake - Improved power, supercharger sound, and overall performance. - 034Motorsport - Audi

Improved power, supercharger sound, and overall performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CARB certified for sale in all 50 states

Brand:
034Motorsport - Corporate Logo
ES#:
4304717
Mfg#:
034-108-1027
EO#:
D-850-2
In Stock
$455.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 3.0T Luft-Technik Intake System

ES#3477816 - 023795ECS06 - Audi B9 S4/S5 3.0T Luft-Technik Intake System - Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Cold Air Intake - ECS - Audi

Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Cold Air Intake affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3477816
Mfg#:
023795ECS06
In Stock
ON SALE! SAVE 19%
$529.99

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

$429.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B9/B9.5 S4 & S5 3.0T IE Carbon Fiber Intake System

ES#4346278 - IEINCK3 - B9/B9.5 S4 & S5 3.0T IE Carbon Fiber Intake System - One-Piece carbon fiber construction that adds up to +16HP/TQ - Integrated Engineering - Audi

One-Piece carbon fiber construction that adds up to +16HP/TQ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4346278
Mfg#:
IEINCK3
In Stock
$1091.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Diverter Valve - Black

ES#3183557 - 034-145-5000-BLK - Billet Diverter Valve - Black - High-performance spring and piston design is both durable and a performer! - 034Motorsport - Audi Volkswagen

High-performance spring and piston design is both durable and a performer! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
034Motorsport - Corporate Logo
ES#:
3183557
Mfg#:
034-145-5000-BLK
In Stock
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Intake Systems

Let your engine breathe! Your air intake pulls in fresh air to supply one of the three key ingredients for internal combustion: air! We have everything to replace a broken or old intake as well as performance cold air intake options to give you more power and better sound.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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