RaggDoll Motorsports Single-Pass Intercooler for Porsche 718 Cayman & Boxster (982 Platform)

$ 3,290.00 USD
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Better Cooling. More Consistent Power. No Gimmicks.

Whether you drive a Porsche 718 Cayman or Boxster—Base, T, GTS, or S—the rear-mounted heat exchangers create cooling challenges, especially under hard driving or increased boost. The factory coolant system was never designed to handle extreme temps. That’s why we engineered the RaggDoll Single-Pass Intercooler: a smarter, more efficient solution that doesn’t overwhelm your system like typical dual-pass designs.

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.

Key Features

• 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

Summary

Whether you're running a mild tune or chasing big horsepower, the RaggDoll Motorsports Single-Pass Intercooler is built to perform. Unlike dual-pass gimmicks that overload the system, this intercooler is engineered for real-world cooling, giving you more consistent power, longer sessions, and a smarter way to keep IATs in check. No tricks. Just results.

Trusted by Porsche 718 Owners

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Liza & most of the time Vince is amazing...lol. Nah, kidding, these guys are awesome folks to deal with. I purchased their Stage 2 turbo, turbo inlet, intercooler, engine tune, and high pressure fuel pump for my 2018 2.5L Boxster GTS and they're products and service have been top notch throughout the entire process.

Chris Rademacher
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Raggdoll Motorsports set up two dyno sessions for my Porsche Turbo S. The Porsche touts a 4.0-liter built engine and head work facilitated by Sam at ByDesign. Also has the XR ByDesign turbo kit with all the supporting mods. The first session the PDK kept transitioning out of manual mode. During the second session a boost leak at the throttle body boot ended the session early. We managed 812 hp on a Mustang dyno at only 20 psi of boost.

Michael Vigil
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The people behind RaggDoll Motorsports have been in the game for a very long time and really know their stuff. They have a passion for modifying cars and are enthusiasts before anything else.

Adam Aggour
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I purchased a RENNEN turbocharger for my 718 T. I had a special request, which was to get the turbine housing coated with Swain Tech white lightning thermal barrier coating and RaggDoll accommodated without hesitation even though it was something new for their team.

Khiem Dinh
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Hey All! Shout out to Liza and @Raggdolls718. Amazing customer service, product knowledge and a top quality product. Liza went out her way to accommodate my tight timeframe and the level communication and level of detail shared was amazing.

Steven Van Blarcom
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I purchased the Raggdoll Series One turbocharger upgrade and the turbo inlet upgrade from RMS for my Porsche 718 Cayman GTS and was very pleased with both the products and the customer service from RMS!

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