The factory intercooler in the Porsche 718 Cayman and Boxster platform is one of the biggest performance bottlenecks — especially for anyone running a tune or upgraded turbo. It’s undersized, inefficient, and worst of all, uses a dual-pass design that circulates hot coolant before it ever gets a chance to cool off.
Enter the RaggDoll Motorsports Intercooler: a true single-pass design built for optimized heat rejection and real-world performance, not just easy manufacturing.
Most aftermarket 718 intercoolers follow the same flawed blueprint as the OEM core: dual-pass coolant routing. That means coolant flows through the top half of the core, picks up heat, and then gets routed through the bottom half — while still hot — before finally returning to the cooling circuit.
This design sacrifices cooling efficiency in favor of compactness and ease of production.
The result?
RaggDoll’s intercooler for the 718 platform eliminates this flaw by using a true single-pass core. Coolant flows in one direction across the core, immediately exiting back to the heat exchangers where it can be cooled down properly.
Benefits of the RaggDoll Intercooler:
This intercooler was tested in-house on builds making up to 600 crank horsepower, with no signs of thermal soak under sustained runs.
Lower IATs mean more than just a temperature drop — they directly impact your 718’s power output. By preventing timing retard caused by heat, you keep your engine operating at its full potential. The RaggDoll intercooler is one of the few upgrades that actually improves power across the rev range without any tuning required.
Pair it with a RaggDoll turbo and you have the foundation for a track-ready setup that pulls hard, run after run.
Installation is simple and fully reversible. The RaggDoll intercooler uses factory mounting locations and accepts OEM coolant lines. No extra hoses, brackets, or electronic trickery.
Key Specs:
This isn’t a repurposed core from another platform — it was built specifically to solve problems in the Porsche 718 charge-cooling system. Designed in-house by RaggDoll Motorsports and tested in real-world driving conditions, it’s the intercooler you actually need, not just a bigger version of something that never worked well to begin with.
If you're running a tune, bigger turbo, or ethanol, the stock intercooler is holding your car back. The RaggDoll Motorsports Single-Pass Intercooler is the proven, bolt-on upgrade that delivers real performance where it counts.
Track tested. Street proven. Designed for power.
Ready to lower IATs and make consistent power? RaggDoll’s got the cooling solution your Porsche 718 was missing.
Reference Link : The Raggdoll Motorsports Porsche 718 982 Cayman Boxster multi port Cold Air Intake Filter upgrade assembly!! Post #46
https://www.718forum.com/posts/460039/
Built by enthusiasts, for enthusiasts. RaggDoll delivers high-performance parts, custom innovations, and expert-level support for serious drivers and tuners worldwide.
