Every charge cooler ever built shares the same ceiling: it cannot make the air colder than the air it is sitting in. That is physics, not engineering, and no amount of core volume gets you past it. The way past it is refrigeration — and every car on the road is already carrying a refrigeration plant. On November 10, 2026 the United States Patent and Trademark Office issued us a patent for what we do with it.
The ceiling nobody mentions on the spec sheet
An air-to-air intercooler is a heat exchanger with ambient air on one side. At best — perfect flow, infinite surface area, a core the size of the hood — it brings the charge down to the temperature of the air going through it. It can approach ambient. It can never go under it.
Water-to-air moves the problem one step down the line and buys you thermal mass, which is why it holds up better on repeat pulls. But the water is cooled by a heat exchanger with ambient air on one side, so the floor is the same floor.
Which means every spec-sheet argument about core volume, row count and bar-and-plate construction is an argument about how close to ambient you get, and how long you hold it. Those are real and they matter. We build cores that compete on exactly those terms. But on a 95 °F afternoon in Texas, the best possible intercooler in the world hands your engine 95 °F air, and the third pull is still worse than the first.
Bigger cores change how fast you reach the floor. They do not move the floor.
Below ambient means refrigeration
There is exactly one way to deliver intake air colder than the air outside the car, and it is to run a refrigeration cycle. Drag racers have known this forever, which is why the ice box exists: dump the charge cooler's water through a tank of ice and water, and for one pass you get air far below ambient.
It works beautifully and it has one flaw. It runs out. Ice is a consumable with a stopwatch attached — good for a pass, maybe a lap, useless on the road, and it needs refilling between every run by someone standing there with a cooler.
So the question was never whether refrigeration works. It was whether you can get refrigeration that never runs out, on a street car, without bolting a second compressor and a second condenser to a car that has nowhere to put them.
The car is already carrying one
The air conditioning system in a modern car is a complete, engineered, warrantied refrigeration plant. It has a compressor driven by the engine, a condenser at the front of the car, a metered expansion circuit, and — this is the part that matters — a pair of service ports sitting in the engine bay, there so a technician can charge the system.
Our system connects to those service ports. Refrigerant is routed through a brazed-plate heat exchanger — the chiller — which sits in the charge cooling circuit. The refrigerant takes heat out of the coolant; the chilled coolant takes heat out of the charge. The cabin air conditioning stays connected and keeps working.
The chiller sits between two circuits that the car already has. The refrigerant side taps the factory service ports; the coolant side replaces nothing and adds no front-mounted hardware.
What that buys you
The charge cooling circuit is no longer chasing ambient. It is being actively refrigerated, continuously, by a compressor that is turning whenever the engine is turning. Intake temperatures drop below what the outside air can give you, and they stay there — pull after pull, lap after lap, and in traffic on the way home.
Colder, denser air is worth power on its own. The larger gain is what it lets the tune do: more timing, more boost, less knock retard, and far less of the heat-driven backing-off that makes the fourth run on a hot day embarrassing.
What is actually protected
We filed on the way the system integrates with the vehicle's own air conditioning circuit to refrigerate the charge cooling loop. That application has now issued.
US Patent No. 12,789,581
Issued November 10, 2026 · Application 18/764,896 · Inventor: Serhat Kocak, Houston, Texas
Everything we have shipped under “patent pending” since the application went in is covered by that number, and our product pages are being updated to carry it.
Which cars
Each kit is built for the car: pre-crimped refrigerant lines in the right lengths, quick-connect couplers that match the factory service ports, and model-specific brackets. No cutting, no drilling, nothing permanent.
| Platform | Kit |
|---|---|
| BMW B58 | Gen 1, Gen 2 and Gen 3 mild hybrid |
| BMW S58 | M2, M3, M4, X3 M, X4 M |
| BMW S55 | M3 and M4, F80 / F82 / F83 |
| BMW S63 | M5 and M8, F90 / F91 / F92 / F93 |
| Toyota Supra | A90 and A91 |
| Lamborghini & Audi | Huracán and R8 |
| Audi SQ5 | B8.5, 2014–2017 supercharged 3.0T |
| Mercedes-AMG | AMG GT |
| Dodge | Hellcat and Ram TRX |
Not on the list? The universal system covers applications we have not built a dedicated kit for yet, and if you send us your VIN we will tell you which kit is right before you order rather than after.
Designed and engineered in Houston, Texas. Free shipping within the USA, and we ship worldwide. If you would rather have it fitted than fit it, our shop is at 8100 Kempwood Dr, Houston, TX 77055 — call +1 (832) 303-2795 or email info@shopprojectgamma.com.
