RaggDoll Motorsports Single-Pass Intercooler

Better Cooling. More Consistent Power. No Gimmicks.

The RaggDoll Motorsports Single-Pass Intercooler is a high-efficiency charge-air cooling upgrade for the Porsche 718 Cayman and Boxster platforms, engineered to control intake air temperatures under increased boost and sustained load. Designed for tuned street cars, upgraded turbo builds, and track-driven applications, it delivers consistent cooling performance, reduced heat soak, and reliable power without compromising OEM fitment or drivability.

Why Intercooler Efficiency Actually Matters—Stock or Tuned

No matter your setup, intake air temperature (IAT) affects ignition timing. Once IAT hits 104°F, timing gets pulled. Cross 120°F? You're losing big. Push past 140°F? Say goodbye to power—even if boost and AFRs look great.
On tuned 718s, heat soak can rob you of 20–40 HP or more. Whether you’re daily driving, canyon carving, or pushing for peak dyno numbers, keeping IATs low is non-negotiable.

Why Choose the RaggDoll Single-Pass Intercooler?

• Maximizes Coolant Flow: Single-pass design minimizes resistance and maintains OEM pump efficiency
• ‍Reduces Coolant Temps: Avoids excessive heat buildup that causes timing pull
• ‍Larger Core Volume: Increases heat transfer surface area for better IAT control
• ‍No Engine-Out Install Required: Simple, clean fitment without added complexity
• ‍OEM+ Integration: Plug-and-play compatibility with the stock cooling system

Synergy with RaggDoll’s Extreme Charge Cooling Kit

For the ultimate cooling setup, pair the Single-Pass Intercooler with our Extreme Charge Cooling Kit — which includes:

• Larger coolant volume
• High-capacity pump upgrade
• Triple heat exchanger configuration

This system pushes the limits of cooling efficiency, keeping IATs near ambient even under heavy load.

RaggDoll vs Dual-Pass Intercoolers: What Actually Works

Dual-pass systems were built to mimic factory routing—not performance. They increase pressure and heat without adding efficiency. Real-world testing (like Mishimoto’s study on the F80 M3/M4) shows that dual-pass designs often provide negligible benefits over a well-designed single-pass layout.
The RaggDoll Single-Pass Intercooler? It delivers measurable cooling gains right out of the box—no flow tuning, no headaches, just performance.

Why This Intercooler Exists

The factory 718 intercooler is adequate for stock power levels but quickly becomes overwhelmed once boost pressure, ignition timing, or track use is introduced. Rising intake air temperatures lead to timing pull, inconsistent power delivery, and reduced reliability during repeated pulls or extended sessions.

The RaggDoll Single-Pass Intercooler addresses these shortcomings with a high-flow, thermally efficient design that maximizes heat rejection while minimizing pressure drop—keeping charge air dense and power consistent.

Key Features & Benefits

• Designed specifically for the 718 Cayman & Boxster cooling architecture
• Consistent IATs for stock or tuned setups
• Reduces timing pull, improves throttle response, and sustains power
• Straightforward install — no permanent modifications
• Ideal for daily driving, track days, or power builds

What’s Included

• ^RaggDoll Motorsports Single-Pass Intercooler Assembly
• Integrated mounting provisions
  

Optional/required extras: upgraded turbocharger, high-flow inlet components, ECU calibration

Why Choose RaggDoll Motorsports

RaggDoll Motorsports cooling solutions are engineered for real-world performance—not just peak numbers.

Consistent temps.
Repeatable power.
Track-tested, street-proven reliability.

Built differently—because heat control is critical to turbo performance.