What is the process of upgrading the intercooler piping on a 1999 Toyota Supra Twin Turbo?

Upgrading Intercooler Piping on a ’99 Supra Twin Turbo ===

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Are you a proud owner of a 1999 Toyota Supra Twin Turbo and looking to enhance its performance? One of the best ways to achieve this is by upgrading the intercooler piping. The intercooler piping is a crucial component of the turbocharging system, responsible for delivering cool, dense air to the engine. By replacing the stock intercooler piping with higher-quality aftermarket options, you can significantly improve the airflow and reduce the heat soak, resulting in increased horsepower and torque. In this article, we will take you through the process of upgrading the intercooler piping on a ’99 Supra Twin Turbo, covering everything from the importance of this upgrade to the tools needed and tips for a successful installation.

=== The Importance of Upgrading Intercooler Piping for Performance ===

The intercooler piping plays a vital role in the performance of your ’99 Supra Twin Turbo. The stock piping is generally made of thinner materials that can restrict airflow and are prone to heat soak. Heat soak occurs when the intercooler absorbs excessive heat from the turbocharged air, reducing its density and negatively impacting engine power. By upgrading to larger-diameter intercooler piping made from high-quality materials such as aluminum or stainless steel, you can minimize restrictions and heat soak, allowing for better airflow and improved performance.

A larger diameter piping allows for increased airflow, which means more air can reach the engine, resulting in greater horsepower and torque gains. Additionally, the improved airflow can also enhance throttle response, reducing turbo lag and making the car feel more responsive. Upgrading the intercooler piping also provides the opportunity to optimize the routing of the pipes, eliminating unnecessary bends and reducing pressure drop. Overall, the benefits of upgrading your intercooler piping are numerous and can substantially enhance the performance of your ’99 Supra Twin Turbo.

=== Step-by-Step Guide: Upgrading Intercooler Piping on a ’99 Supra Twin Turbo ===

Now, let’s get into the nitty-gritty of upgrading the intercooler piping on your ’99 Supra Twin Turbo. Here is a step-by-step guide to help you through the installation process:

  1. Begin by disconnecting the negative terminal of the battery to ensure safety during the upgrade process.

  2. Locate and remove the stock intercooler piping. This usually involves disconnecting clamps, bolts, and hoses that secure the pipes to the intercooler and intake manifold.

  3. Inspect the new aftermarket intercooler piping kit to ensure all the necessary components are included. This typically includes pipes, silicone couplers, clamps, and mounting brackets.

  4. Install the new intercooler piping by following the manufacturer’s instructions. Make sure to align the pipes properly and secure them using the provided clamps or brackets.

  5. Double-check all connections to ensure they are tight and secure. This will prevent any boost leaks which could negatively affect performance.

  6. Reconnect the negative terminal of the battery and start the engine to check for any potential issues or leaks. Monitor the system closely and make any adjustments if necessary.

By following these steps, you will be able to successfully upgrade the intercooler piping on your ’99 Supra Twin Turbo, enhancing its performance and overall driving experience.

=== Choosing the Right Intercooler Piping for Your 1999 Toyota Supra Twin Turbo ===

When it comes to choosing the right intercooler piping for your ’99 Supra Twin Turbo, there are a few factors to consider. Firstly, opt for intercooler piping that is designed specifically for your model year and engine configuration. This ensures a proper fit and compatibility with your vehicle’s turbocharging system.

Secondly, consider the material of the piping. Aluminum and stainless steel are popular choices due to their durability and resistance to corrosion. Aluminum piping is generally lighter, while stainless steel provides greater strength.

Additionally, take into account the diameter of the piping. Larger diameters, such as 3 inches, allow for increased airflow and are suitable for high-performance applications. However, it’s essential to strike the right balance, as excessively large piping can lead to decreased turbo spool time and slower throttle response.

Lastly, consider the reputation and reviews of the manufacturer or brand. Look for reputable companies known for producing high-quality intercooler piping kits that have been tested and proven to deliver performance gains.

=== Tools and Equipment Needed for Upgrading Intercooler Piping ===

To successfully upgrade the intercooler piping on your ’99 Supra Twin Turbo, you will need a few tools and equipment. Here is a list of the essentials:

  1. Socket set and wrenches of various sizes
  2. Screwdrivers
  3. Hose clamps
  4. Silicone lubricant
  5. Jack and jack stands for lifting and securing the car
  6. Torque wrench
  7. Pliers or vise grips
  8. Shop towels or rags for cleaning surfaces
  9. Safety glasses and gloves for protection

Having these tools readily available before you start the upgrade process will ensure a smoother and more efficient installation.

=== Tips and Tricks for a Successful Intercooler Piping Upgrade on a ’99 Supra Twin Turbo ===

Now that you have a better understanding of the process and tools required, here are some tips and tricks to help you achieve a successful intercooler piping upgrade on your ’99 Supra Twin Turbo:

  1. Before starting the installation, thoroughly clean the engine bay and intercooler area to remove any dirt or debris that may obstruct the installation process.

  2. Take your time during the installation process and carefully follow the manufacturer’s instructions. Rushing may result in mistakes or improper fitting of the intercooler piping.

  3. Apply silicone lubricant to the silicone couplers before installation. This will make it easier to slide the couplers onto the piping and ensure a proper seal.

  4. Tighten all clamps and fittings securely, but avoid over-tightening to prevent damage to the pipes or couplers.

  5. After the installation, monitor the intercooler piping system for any potential leaks. Keep an eye out for any hissing sounds, visual signs of oil or coolant leaks, or reduced boost pressure.

By keeping these tips in mind, you can increase the likelihood of a successful upgrade and optimal performance gains from your upgraded intercooler piping.


Upgrading the intercooler piping on your ’99 Supra Twin Turbo is a rewarding and worthwhile modification that can significantly enhance your car’s performance. By increasing airflow, reducing heat soak, and optimizing the piping routing, you can unlock additional horsepower and torque while improving throttle response. Remember to choose the right intercooler piping kit, gather the necessary tools, and carefully follow the step-by-step guide for a successful installation. With some time and effort, you’ll be able to enjoy the exhilarating benefits of upgraded intercooler piping on your ’99 Supra Twin Turbo.