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by CTS


CTS Turbo is proud to announce our Direct fit FMIC for the B9 platform.

The OEM B9 intercoolers deliver underwhelming performance, this platform benefits greatly from an intercooler upgrade. Vehicles at stock boost levels up through Stage 1-2 and Big Turbo applications will all see a large improvement over the factory equipped hardware.

This giant intercooler core is almost 2 times larger than stock and meets our extensive quality control and pressure testing (up to 50psi). Cast aluminum end tanks attach to factory hoses seamlessly to ensure a boost-leak free fit that results in increased horsepower and torque.


    • Efficient bar and plate construction
    • Internal air-directing fins provide smooth flow and minimize pressure drop
    • Low pressure drop
    • Maintains factory mounting points
    • Designed using the latest 3D scanning technology
    • No trimming required, complete replacement for factory part
    • Rated for power levels in excess of 600HP
    • Core dimensions: 21.75 Length x 2.5″ Tall x 16″ Height
    • Cast aluminum end tanks results in superior flow


Fitment (does not fit models with active aerodynamic grill):

    • 2018-2021 S4 (B9) 3.0T
    • 2018-2021 (B9) 3.0T
    • 2017-2021 A4 (B9) 1.8T/2.0T
    • 2017-2021 A5 (B9) 1.8T/2.0T
    • 2017-2021 A4 Allroad (B9) 2.0T

We have a 20-day return policy, which means you have 20 days after receiving your item(s) to request a return. Please note we charge a 25% restocking fee on all returns. To be eligible for a return, your item must be in the same original/new condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at Please inspect your order upon arrival, and contact us immediately if the item is defective, damaged or if you received the wrong item, so that we can evaluate the issue and make it right.

Exceptions/non-returnable items:

Certain items cannot be returned, like sale items, perishable goods, custom products (such as special orders or personalized items), hazardous materials, flammable liquids, and/or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember, it can take some time for your bank or credit card company to process and post the refund.