Precision Crafted & Performance Influenced Cooling Solution
Upgrade your 23+ Toyota GR Corolla with our high-end Front Mount Intercooler (FMIC) featuring an air straightener, custom machined billet end tanks made on a 5-axis CNC machine, and now with an optional 1.75" in or 2"in inlet and outlet sizes to allow even more air flow and heightened engine cooling.
GRC Heat Soak Solution
Race Series Air Straightener
Maximum airflow efficiency was in mind when engineering this in-house which allows optimal cooling across the entire core allowing even more responsiveness and even enhanced power.

Features
- Custom machined billet end tanks made on a 5-axis CNC machine
- Billet end tanks feature an air straightener to better distribute air across the core
- 100% designed in-house to our spec cores to keep temps and pressure in check.
- 1.75" in or 2" in inlet and outlet options
- Fits stock or aftermarket intercooler piping.
- Minimal trimming on the bumper and the hood latch support bracket is required. (Install video will cover this)
Inlet & Outlet Sizes
For our race series GRC FMIC we're offering either 1.75" in or 2" in inlet and outlet sizes. 1.75" in is standard OEM piping, but now if you want to further maximize air flow now you can choose a 2'in inlet/outlet option. Pair with our OTL Front Mount Intercooler (FMIC) 2" High-Flow Piping Kit for the ultimate cooling package!
Installing OTL GRC FMIC
Note: Installing requires the lower crash bar to be removed.
Optional Stencil
Optional OTL stencil that's sprayed in-house. At no extra cost. Rip with us and represent OTL! Everything fast!!
Fitment
- 2023+ Toyota GR Corolla
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.