SKU: 20641037789

IE Polymer Air Intake System - Audi / B9 / B9.5 / A4 / A5

Sale price$336.55 Regular price$373.94
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

IE Polymer Air Intake System - Audi / B9 / B9.5 / A4 / A5FEATURES Rotomold polymer for superior heat resistance Up to 10 20HP over stock (with software) Increased turbo & engine sounds Massive 5" air filter for excellent flow Integrated velocity stack for smooth air transitions High pressure & low pressure air zones Factory style mounts for reliable & easy installation All stainless hardware Powder coated aluminum filter plate & velocity stack Stainless laser etched logo plate ROTOMOLD PLASTIC This cold air


FEATURES

  • Rotomold polymer for superior heat resistance
  • Up to 10-20HP over stock (with software)
  • Increased turbo & engine sounds
  • Massive 5" air filter for excellent flow
  • Integrated velocity stack for smooth air transitions
  • High pressure & low pressure air zones
  • Factory style mounts for reliable & easy installation
  • All stainless hardware
  • Powder-coated aluminum filter plate & velocity stack
  • Stainless laser-etched logo plate


ROTOMOLD PLASTIC

This cold air intake is manufactured from a high-quality rotomold procedure that produces a superior plastic material with consistent wall thickness, strong corners, and excellent heat resistance. Enjoy a proper motorsport-designed intake system without compromise.

PERFORMANCE
The internal volume of the intake and its complex shapes are the results of application-specific engineering for the Audi B9 platform. Every inch has been performance designed to feed your turbocharger with the most airflow possible.

VELOCITY STACK
The integrated velocity stack smooths the airflow from the large filter into the charge system with excellent laminar properties. This powerful design detail results in a very high inertia flow with reduced drag and power-robbing turbulence at the critical point as air enters the turbocharger.

MULTI-PRESSURE ZONES
This intake features high and low pressure zones to feed the turbocharger and engine demands for any power goal. The majority of fresh air supply is supplied to the filter from the grill. If additional air demands are required, the intake will pull low-pressure air through the filter cover as needed.

AWESOME SOUND
The stock airbox on your Audi A4 or A5 2.0T has been manufactured to silence all engine and turbo sounds at any performance cost. Upgrading your air system with an IE polymer intake will release a symphony of engine throttle, spool, and blow-off sounds that will be music to your ears.

PERFORMANCE RESULTS
Countless design revisions, rapid prototyping, flow bench testing, dyno runs, and real-world verification has resulted in a performance intake design with power gains of up to 10-20HP on tuned engines!

FLOW RESULTS
Back-to-back flow bench testing details consistent airflow gains of up to +70 CFM over stock! This increase shows efficiency over the factory parts and capability to provide increased airflow demands from ECU tunes and performance hardware upgrades.

EASY INSTALL
Install your new air intake with basic hand tools in only minutes. Our polymer intake is a direct factory upgrade with stock-style mounts for a perfect, hassle-free installation.


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20641037789

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Bay
Grantham, US
★★★★★ 5
Good ingredients
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
Great healthy quality baby food ingredients and tastes and smells great for my child.
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Reviewed in the United States on December 14, 2025
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The Clift’s
Dallas, US
★★★★★ 5
Baby Approved!
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
These are great! My son started eating these around 8 months old, now he’s over a year, and he loves them. He gets so excited when he sees one. The ingredients are of amazing quality and definitely soothes the worry of my mommy heart.😅 I’m so glad I’ve found this brand. This is the only brand I trust and it’s the only brand I buy!
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Reviewed in the United States on November 23, 2025
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Zaiden Wertz
Charlottesville, US
★★★★★ 5
Worth the Money By Far!
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
My son is a huge fan of Serenity Kids! Worth the money every time I click Buy Now! Takes the guess work out of ingredient lists and meal times for parents and even other caregivers!
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Reviewed in the United States on January 22, 2026
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Null
Massapequa, US
★★★★★ 5
Baby loved them!
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
Baby loved all the flavors! Perfect way to expose baby to diverse tastes and flavors. Tried some myself and they all tasted fairly good for being baby food.
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Reviewed in the United States on December 14, 2025
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YM
Lexington, US
★★★★★ 1
Caused pooping spree
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
Serenity Kids food pouches have caused my baby to have multiple pooping sprees. I bought the products due to the rave reviews and organic ingredients. But there are way too many ingredients in one pouch for a baby, and while everything looks clean, not everything is good for an immature digestive system. For example, apple cider vinegar might have been the trigger of one pooping spree. But there are so many ingredients in these pouches, making it hard to narrow it down. What has happened is that these and other Serenity Kids pouches have caused my baby to poop 4-5 times a day, at times 2 days in a row. It's awful to see the little one with a screaming red bottom and to hear her cry at the top of her lungs on the diaper changing station. Serenity Kids should be ashamed. For a company marketing itself as offering healthy foods to babies, it has failed spectacularly.
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Reviewed in the United States on March 18, 2026

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