Stage 2 Sound Test: Cobb Vsperrin Wrx Downpipes

The Subaru WRX has long been a favorite among car enthusiasts, particularly for its tuning potential. One of the most popular modifications for the WRX is the downpipe, which can significantly alter the sound and performance of the vehicle. In this article, we will compare two popular options: the Cobb and Perrin downpipes. We will focus on their sound characteristics, performance implications, and overall value.

Understanding Downpipes

Downpipes are an essential component of a vehicle’s exhaust system, connecting the turbocharger to the rest of the exhaust. By replacing the factory downpipe with an aftermarket option, you can improve exhaust flow, reduce turbo lag, and enhance the overall sound of your WRX.

Overview of Cobb Downpipe

The Cobb downpipe is known for its quality construction and performance gains. Made from high-quality stainless steel, it features a 3-inch diameter, which helps to maximize exhaust flow. The Cobb downpipe is designed to work seamlessly with the factory turbo and provides a noticeable increase in both sound and performance.

Sound Characteristics

One of the standout features of the Cobb downpipe is its aggressive sound. When installed, it produces a deep, throaty tone that is sure to turn heads. The sound is particularly pronounced during acceleration, providing a satisfying auditory experience without being overly loud during normal driving conditions.

Performance Gains

The Cobb downpipe has been shown to improve horsepower and torque significantly. Many users report gains of 15-25 horsepower depending on other modifications and tuning. This performance increase is attributed to the improved exhaust flow and reduced back pressure.

Overview of Perrin Downpipe

Perrin is another well-respected name in the Subaru performance community. Their downpipe is also constructed from high-quality stainless steel and features a similar 3-inch diameter design. Perrin downpipes are designed to enhance both performance and sound, making them a popular choice among WRX owners.

Sound Characteristics

The Perrin downpipe offers a slightly different sound profile compared to the Cobb. Users often describe the sound as more aggressive and raw, with a noticeable rumble at idle. During acceleration, the Perrin downpipe delivers a more pronounced exhaust note that many enthusiasts find appealing.

Performance Gains

Similar to the Cobb downpipe, the Perrin downpipe also provides significant performance improvements. Users can expect gains in horsepower and torque that are comparable, often in the range of 15-25 horsepower. These gains are achieved through enhanced exhaust flow and increased turbo efficiency.

Sound Test Comparison

To truly understand the differences between the Cobb and Perrin downpipes, we conducted a sound test. The test involved recording the exhaust note of each downpipe under similar conditions, including idle, revving, and acceleration.

• Cobb Downpipe: Deep, throaty sound with a smooth transition during acceleration.
• Perrin Downpipe: Aggressive and raw sound with a noticeable rumble at idle.

The sound test revealed that the Cobb downpipe is more refined, while the Perrin downpipe offers a more aggressive tone. The choice between the two often comes down to personal preference in sound.

Installation Process

Both the Cobb and Perrin downpipes are designed for a straightforward installation process. However, it is recommended that installation be performed by someone with experience in automotive modifications. Below is a brief overview of the installation steps for both downpipes:

• Remove the factory downpipe.
• Install the new downpipe using the provided hardware.
• Reconnect the exhaust system.
• Check for leaks and ensure proper fitment.

Both downpipes come with installation instructions, and some users may opt to have them professionally installed to ensure optimal performance.

Value for Money

When considering a downpipe for your WRX, it’s essential to evaluate the value for money. Both the Cobb and Perrin downpipes are priced similarly, but there are a few factors to consider:

• Build Quality: Both downpipes are made from high-quality materials, ensuring durability and longevity.
• Performance Gains: Both options provide similar performance improvements, making them a solid investment.
• Sound Preference: Your choice may ultimately depend on your preferred sound profile.

In terms of value, both downpipes offer excellent performance and sound enhancements, making them worthy contenders for any WRX enthusiast.

Conclusion

In the battle of Cobb vs. Perrin downpipes for the Subaru WRX, both options have their strengths. The Cobb downpipe offers a refined sound and reliable performance, while the Perrin downpipe provides a more aggressive tone that appeals to many enthusiasts. Ultimately, the best choice depends on personal preference regarding sound and driving experience.

Whichever downpipe you choose, upgrading your WRX’s exhaust system is sure to enhance your driving experience and unleash the full potential of your vehicle.