Skip to content

COBB Cast Aluminum Turbo Inlet 2015-2021 WRX / 2014-2018 Forester XT

SKU 745450
Original price $225.00 - Original price $225.00
Original price
$225.00 - $225.00
Current price $225.00

Here, you are looking at the COBB Turbo Inlet for 2015-2021 Subaru WRX.

This inlet is constructed of cast aluminum, a much-needed upgrade over the failure-prone factory piece.

The inlet ID has been expanded to 70mm, a 5mm increase compared to stock and the outlet is 2mm larger than stock, matching the factory compressor inlet of 50mm. Features include mounting provisions for either stock or COBB Electronic Boost Control Solenoids, and threaded ports to accept factory-sized PCV and EVAP fittings (included). We replace the brittle factory BPV connection with a more robust reinforced silicone coupler to eliminate a common source of air leaks. A captive o-ring is placed on the turbocharger side for leak-free installation.Flats on either side of the inlet allow for the addition of auxiliary pressure sensors, temperature sensors, etc.

The factory turbo inlet on the 2015-2021 Subaru WRX is made out of hardened plastic and is prone to failure after years of heat cycling. Cracking in the factory piece or connectors can lead to troublesome air leaks that are difficult to diagnose. The COBB Turbo Inlet is more robust and offers a measurable airflow increase over stock.

Quick Details:

  • Cast Aluminum Construction
  • Maximizes Airflow to Turbocharger
  • Directly Replaces Failure Prone OEM Components
  • Port Matched to Compressor Inlet
  • Compatible With COBB OTS Maps and Packages

This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:


    Customer Reviews

    Based on 8 reviews
    Fits great!

    The turbo inlet was easy to install with the instructions. Cobb includes both connectors for different model years. The only piece of advice I have, is to make sure the clamp for the PCV is routed as the directions state or it will throw a code, as it doesn't click in properly. Otherwise, the part is great and should hold up much better than stock.


    Thank you for sharing your experience with the COBB Cast Aluminum Turbo Inlet! It's great to hear that the installation was easy and that the part is performing well. Your advice about the PCV clamp routing is helpful for other users to keep in mind during installation to prevent issues. Enjoy your upgraded performance, and thank you for your 5 Star Review!


    Turbo dog nation

    Best damn turbo inlet in the game.


    There is no doubt about it! The Cobb Cast Aluminum Turbo Inlet is the best in the game! The cast aluminum, a much-needed upgrade over the failure-prone plastic factory piece! It provides added performance, and reliability for your WRX! Thank you for your 5-Star Review!


    Richard Carrera
    Cobb Turbo Inlet

    High quality product, easy install. Happy to know I replaced the plastic oem turbo inlet so I won’t have any problems in the future. Very little changes in turbo sounds. Some people claimed big changes but I did not really get any. I have it paired with bomba bpv and Cobb Intake


    Thank you for your 5 Star Review! The COBB Cast Aluminum Turbo Inlet is the perfect piece to replace your plastic OEM inlet with. Not only will it eliminate the issues with the plastic inlet it also out performs by maximizing airflow to your turbo! Definitely a worth while product to install!


    Michael Loggins
    Looks solid

    Decided on this as I want to do the Cobb boost controller. Solid piece of aluminum. Haven’t put it on yet though.


    Thank you for your 5 Star Review of the COBB Cast Aluminum Turbo Inlet! You definitely wont be disappointed once you install it!


    Unexpectedly necessary

    I wasn’t planning to purchase this upgrade but am very happy I did. I changed the TMIC, charge pipe, and added a 3-port BCS, and it was recommended that I change this as well while I’m down there. The part is super high quality and finished off these modifications nicely. Highly recommend!


    Thank you for the 5 Star Review and added Pic! you are 100% right especially when adding and replacing the mods you have! The Cobb Cast Aluminum Turbo Inlet is stronger than the factory plastic that tends to crack and break! It increases airflow which in turn increases HP! How can you go wrong with better reliability and performance!


    Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare