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K&N Engineering  |  SKU: KNN57-0593

K&N Audi A4 1.8L Turbo 150BHP Performance Intake Kit

$2,498.49
Shipping calculated at checkout.

Description
K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Series Intakes are not legal for use in California and other US States adopting California emission standards.

This Part Fits:

Year Make Model Submodel
2000-2004 Audi A4 Base
2003-2004 Audi A4 Cabriolet
2000-2004 Audi A4 Quattro Avant
2000-2004 Audi A4 Quattro Base

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About K2 Industries

We're a team of passionate car enthusiasts located in South Florida. We are dedicated to assisting you in making your dream build a reality!

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Customer Reviews

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Let customers speak for us

from 199 reviews
Well worth it.

Just bought these clears for my mk7 and love them already. took under a hour to install and i feel like it was a much needed addition for my car. only thing i will say is if you buy them be aware that you have to take your reverse bulb out of your stock tail lights and put them into these (takes 30 seconds to get them out and put them in these new ones) follow my ig: dstagetwo ;)

Dawson Issac
VW MK7 Golf GTI Chrome/Clear LED Tail Lights (2012 - 2017)
Rear lights bmw e90

Absolutely incredible variants of modifications for lights, gadgets etc for all car specs!

Wolfy01
BMW 3 Series E90 Sedan Red / Chrome / Black LED Tail Lights (2005 - 2008)
Completely changed the look!

I love these headlights, I wouldn’t hesitate to buy them again if I got another truck my body style. Best looking headlights I’ve seen that they make for this truck.

Coltan Vice
Spec-D Full LED Headlights Chevy Silverado 1500 (2019-2021) Sequential LED Black Housing w/ Clear or Smoked Lens
Great purchase

Shopped on time, easy install, looks great! Would highly recommend!

Brittney Burriss
BMW 3 Series G20 DRL Module (2019+)

VW Golf 6th Gen Mk6 Hatchback LED Tail Lights (2008 - 2014)

Layne Coy
VW Golf 6th Gen Mk6 Hatchback LED Tail Lights (2008 - 2014)
Great little side marker!

GreEasy to install on my E46 M3 and it looks more modern with the LED lighting. Yes, the light does stay on for a minute (or two) after I un/lock it but it actually looks pretty cool. Definitely an easy modification to update your car's look.

Beemer Boii
BMW E38 7-Series E46 M3 Crystal Light Bar Clear/Smoke Lens Amber/White LED Side Marker Light (1995-2006)

If you buy these you have to program them to your car I have 06 325i

Steven Morales-Gonzalez
Spec-D Projector Headlights BMW 325i 330i 335i E90 Sedan (06-11) 3D Dual Iced LED - Black / Chrome / Tinted
50th Anniversary Carbon Fiber Roundel

Loved the product, great quality

Neville Mitchell
BMW Roundel Emblem Covers - Full Carbon Fiber 50th Anniversary Style

BMW E36 Sedan Custom Clear Tail Lights V3 (1992-1999)

Jay Morey
BMW E36 Sedan Custom Clear Tail Lights V3 (1992-1999)
Carbon Fiber Airducts

Glad that K2 offer this product. One of many carbon fiber parts that I want to add to my G80.

Joe Kelley
BMW 3/4 Series G80 G81 G82 G83 Carbon Fiber Air Ducts (2019 - 2024)
Blue DRL

A complete fresh look for my F20 with this blue DRL. I'm happy with the result with this upgrade!

Marion Khun
BMW 1 Series F20/F21 DRL Module (2015-2019)
Nice Upgrade

Fits like a glove! A sudtle race-inspired look for my G82.

Brandon Edwards
BMW 4 Series M4 G82 KB Style Carbon Fiber Spoiler (2021+)
Amazing Taillights

I absolutely love the product, they fit perfectly as if they are oem. I love the attention to detail

Sakir Hall
BMW 3 Series E90 Upgraded LED Tail Lights (2009 - 2011)
Beautiful Spoiler

The carbon fiber look is flawless! Had it installed for a week now and so far it's sturdy during high speeds. Worth the money, worth the wait!

Matthew Medina
BMW 2 Series G42 MP Style Carbon Fiber Spoiler (2022+)
Premium Interior Touch

This carbon fiber HUD cover added a high-end, sporty feel to my X4 M’s interior. The fit is precise, and the carbon fiber finish looks stunning. Small upgrade, big impact!

Vernon Mitchell
Toyota Supra Mk5 DRL Module (2019+)

Frequently Asked Questions

Why Buy from K2 Industries

What makes K2 Industries more than just a parts supplier?

We’re a team of USA-based car enthusiasts committed to helping you get your build right the first time. With our deep product knowledge and close relationships with trusted manufacturers, we ensure you receive high-quality parts that perform. We’re here to support you before, during, and after your purchase, providing personalized advice, part compatibility checks, and responsive customer service. When you buy from us, you’re joining a community that cares as much about your car as you do.

How do I know which parts are best for my car and goals?

Answer: Our team can provide personalized mod plans to match your performance and style goals. Whether you’re building for speed, aesthetics, or both, we’ll help you select the right parts for your vision. Contact us to discuss your project!

Do You Have Financing Options?

Answer: Yes, we offer flexible financing options to make it easier for you to upgrade your vehicle without paying the full amount upfront. Choose our financing option at checkout to split your purchase into manageable payments, so you can start your build now and pay over time.

Visit our FULL FAQ Page

https://www.k2-industries.com/a/faq

Shipping

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How long will it take to receive my order?

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

Other

Any question?

You can contact us through our contact page! We will be happy to assist you.