UP TO +26 WHP

iE engineers set out to build the highest performing intake for your B9 A4 or A5 that also fits like a factory part. 3D scans of the engine bay and computer design delivered a ram-air intake with a velocity stack and a huge filter inlet. On a full bolt-on Stage 2 A4 it added up to 26 WHP and 23 ft-lbs.

UP TO +26 WHP

INCREASED AIRFLOW

Ditch the restrictive stock airbox and feed your turbo the cold air it wants, especially in the hot summer months. And it sounds great.

INCREASED AIRFLOW

HIGH-FLOW VELOCITY STACK

The velocity stack channels air into the intake as quickly as possible and doubles as a solid mount for the filter, so no intake pipes rattle against the heat shields.

HIGH-FLOW VELOCITY STACK

HEAT CONTROL

A three-piece heat shield channels cold air from the front of the car to the filter and blocks hot engine bay air. A second shield above the turbo blocks power-robbing heat from the exhaust side.

HEAT CONTROL

CARBON FIBER UPGRADE

The optional gloss carbon fiber lid transforms the look of your intake. It is shaped to fit the iE intake and conform to the factory engine bay perfectly. Add it in the BUY NOW options.

CARBON FIBER UPGRADE

POWER TESTING

Back-to-back on our Dynapack hub dyno, full bolt-on Stage 2 B9 A4. The only change was the intake.

318 WHP / 371 FT-LBS

318 WHP / 371 FT-LBS

Peak power and torque with the iE intake, compared to the stock intake with a new, clean filter.

+26 WHP / +23 FT-LBS

+26 WHP / +23 FT-LBS

Gain over stock across the rev range. Results are approximate and vary car to car.

INSTALL GUIDE

Difficulty

photosEasy

Time

photos Around 1 hour

Download Pdf

Enjoy a quick and hassle-free DIY install. Basic hand tools are all that is needed for this one. You got this.

WE GOT YOU

Have questions about tuning your Audi with iE? Our in-house team of Mod Gurus are serious motorheads with big brains and the know-how to steer you right.

Let’s Connect

COMPATIBILITY

YEAR MAKE MODEL ENGINE DRIVE
2016-2025 Audi A4 (B9) 2.0T FWD / AWD
2016-2025 Audi A5 (B9) 2.0T FWD / AWD
2016-2026 Audi A4 Allroad (B9) 2.0T AWD
img FITMENT NOTES

Does not fit engines equipped with a MAF housing and sensor. Verify before ordering.

Uses the factory airbox mounts. The stock rubber mounts allow engine movement, so intake parts are not stressed.

FAQs

How much power will I gain?

Expect 10-20 HP and torque on a tuned engine. On a full bolt-on Stage 2 A4 we measured up to 26 WHP and 23 ft-lbs over stock.

Will it fit my car?

It fits B9 A4, A5 and A4 Allroad 2.0T engines, except engines with a MAF housing and sensor.

Is the carbon lid included?

No. It is an optional upgrade. Add it in the BUY NOW options or later.

How long does the install take?

Around an hour with basic tools. No modifications.

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FROM THE SMALLEST DESIGN DETAILS TO CUSTOMER CARE, WE OBSESS OVER EVERY PART OF YOUR EXPERIENCE.

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average rating 4.8 out of 5
Based on 90 reviews
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97% of reviewers would recommend this product to a friend
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Quality
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Rated 4 out of 5
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90 Reviews
Reviewed by Landon
I recommend this product
Rated 5 out of 5
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5 Stars

Perfect sound

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Reviewed by Bradley
I recommend this product
Rated 5 out of 5
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5 Stars

Best sounds ever

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Reviewed by Max
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

This thing is great

Got this thing for my A4 around a month and a half ago, and I absolutely love it. The turbo noises are crazy and 100% worth the money. Makes my car feel new!

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Reviewed by Cristian
I recommend this product
Rated 5 out of 5
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5 Stars

Sounds crazy

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Reviewed by Nathan
I recommend this product
Rated 5 out of 5
Review posted

Stage 1 pro ecu/tcu tune + CAI

I left a review on the b9 a5 intake tune, 10/10. I have a buddy that works at ecs, bought it through him. Induction and turbo noise is insane. fitment is great (my rubber grommets were kind of melted a little bit so it took a little bit of work to get it to sit properly but other than that it was a perfect install.

sounds great, looks great, performs great. 10/10

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Not currently legal for road use in California

Because this part doesn't currently comply with California emissions laws, we can't sell or ship it to California addresses. Everywhere else? Full send.

California Prop 65 warning: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.