SKU: 43454245

Fits 2015-2019 Audi A3 - 1.8L/2.0L, Open Pex Intake System-CI100041

Sale price$179.97 Regular price$199.97
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Fits 2015-2019 Audi A3 - 1.8L/2.0L, Open Pex Intake System-CI100041The APR Open PEX Intake System is the best dollar per horsepower intake system for the 1. 8T 2. 0T Engine! We've maximized performance and sound dramatically by reducing pressure drop and increasing airflow. This translates to more horsepower and torque, and less physical strain on the turbocharger. The system looks great, sounds amazing, and produces more horsepower and torque you can feel. Our Open PEX Intake System does away with the closed airbox

The APR Open PEX Intake System is the best dollar-per-horsepower intake system for the 1.8T/2.0T Engine! We've maximized performance and sound dramatically by reducing pressure drop and increasing airflow. This translates to more horsepower and torque, and less physical strain on the turbocharger. The system looks great, sounds amazing, and produces more horsepower and torque you can feel. Our Open PEX Intake System does away with the closed airbox design and uses a massive 7" washable and reusable cotton filter with a frontal inlet and 4" rear outlet. This was necessary to limit pressure drop across the factory system and maximize airflow while allowing you to fully hear the engine breathe! The massive filter provides excellent filtration. By oversizing the filter, we're able to limit pressure drop without sacrificing filtration. This is made possible through the use of greatly increased filter surface area. The PEX material gives the intake an Oem feel and it allows us to make a complex and organic heat shield shape that keeps hot air pushed through the frontal radiator away from the intake tract. Lastly, PEX retains heat less than other materials, such as metal, making it ideal for performance. Flow Bench and Power Testing: The factory intake system simply can't match the performance of our intake system. The full factory frontal airbox only flows 521 CFM at 28" of H2O. We improved this by 60% with our open airbox, which flows 833 CFM by comparison! However, it's important to always look at the intake system as a whole as flow numbers alone don't always speak to the broader picture. The factory turbocharger can only flow just under 400 CFM through the factory opening, and an intake system will lessen the maximum flow. The goal is to minimize all restrictions before the turbocharger as much as possible to maximize performance. The full factory system brings this down to 275 CFM, or 31% less. The full APR System (Open airbox, rear pipe, and turbo inlet pipe), bring this down to 345 CFM, which is only 13% less, or a 25% improvement over stock! This directly translates to more power you can feel. Our full bolt-on APR Tuned S3 saw max gains of 12 AWHP and 13 AWFT-LBS of torque using the full intake system compared to stock! These are solid gains that make a noticeable difference in performance!

Features:

  • More horsepower with gains up to +12 AWHP over stock
  • More torque with gains of up to +13 AWFT-LBS over stock
  • Greatly outflows the full factory frontal airbox by 60% at 833 CFM vs 521 CFM
  • High heat deflection PEX construction
  • Massive 7” washable and reusable cotton filter with a frontal inlet and 4” rear outlet
  • Creates an intoxicating intake sound in the engine bay
  • Improves throttle response
  • Lessens pressure drop
  • Lessens strain on the turbocharger
  • Lessens heat retention compared to other materials, such as metal
  • Compatible with APR and factory rear intake tubes and turbo inlet pipes
  • Easily installs in minutes
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: 43454245

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LAN
New York, US
★★★★★ 3
Not what I’d hoped
Color: Multicolor a (5-pack), Size: Small
The fabric is nice, soft without being overly bulky. The design was almost what I wanted. I’ve been trying to find underwear that won’t ride up and is comfortable to wear under leggings. The fabric has a LOT of stretch around the legs and deforms quickly. Then it rides up and wrinkles. Smaller leg openings might make the difference.
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Reviewed in the United States on April 1, 2026
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Hailey Terzich
Grantham, US
★★★★★ 4
Great & Comfortable
Color: Multicolor B (5-pack), Size: X-Large, Color: Multicolor B (5-pack), Size: X-Large
I have bought 2 packs of this underwear. I love wearing them. They are very comfortable, and the size fits perfectly. I like most of the colors. The Bamboo Cool lettering on the front does come off after washing though. Otherwise the underwear has been great to wear.
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Reviewed in the United States on May 25, 2026
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NMMo
Waukegan, US
★★★★★ 5
Better than woxer imo
Color: Multicolor B (5-pack), Size: Large
I've been buying Woxers, but theyre super expensive for what youre getting. These are similar in feel and style so i switched over. Another nice thing is i dont have to deal with wedgies like i do with the woxers. Theyre not perfect for wearing when its hot, youre still gunna sweat and these dont wick away sweat super well. But i havent seen many brands that do, and these are not the worst. Im 5'7" and 145lbs and these are comfy and tight enough but not snug. They still leave a bit of indentation on the love handles. You CAN tell that youre wearing them under pant if they are tight.
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Reviewed in the United States on May 11, 2026
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Lisa Carlson
Belleville, US
★★★★★ 5
Comfortable
Size: Small, Color: B004
Great Value , Sizing is as marked. Great color and fit.
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Reviewed in the United States on May 23, 2026
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Kim Mayes
Lowell, US
★★★★★ 5
Perfect for us BBWs
Size: 3X-Large, Color: B002
I love the feel of these underwear. They are true to fit as well. I am 340lbs and bought size 3xl. They are comfortable and not tight in the legs.
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Reviewed in the United States on April 5, 2026

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