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The 370Z is a beloved sports car known for its performance and tuning potential. One of the most popular modifications among enthusiasts is upgrading the headers. In this article, we will explore the differences in sound and power between two leading header options: Stillen and Z1 Motorsports.
Overview of 370Z Headers
Headers play a crucial role in the exhaust system of a vehicle. They are responsible for directing exhaust gases away from the engine, which can enhance performance. The 370Z offers various aftermarket header options, with Stillen and Z1 Motorsports being two of the most popular choices.
Stillen Headers
Stillen headers are known for their quality and performance. They are designed to improve exhaust flow and increase horsepower. Let’s take a closer look at their features.
- Construction: Made from high-quality stainless steel for durability.
- Design: Long tube design that maximizes exhaust flow.
- Performance Gains: Typically provide a noticeable increase in horsepower and torque.
- Sound: Produces a deep, aggressive exhaust note.
Installation
Installing Stillen headers can be straightforward for those with mechanical skills. However, professional installation is recommended for optimal results.
Z1 Motorsports Headers
Z1 Motorsports headers are another excellent option for 370Z owners. They are designed with performance and sound in mind. Here are some key features of Z1 headers.
- Construction: Crafted from high-grade stainless steel for longevity.
- Design: Features a unique design that enhances exhaust flow and reduces back pressure.
- Performance Gains: Offers substantial horsepower and torque improvements.
- Sound: Delivers a more refined and aggressive exhaust tone.
Installation
Similar to Stillen, Z1 headers can be installed by someone with mechanical experience. Professional installation is also advisable for best performance.
Sound Comparison
Sound is a critical factor for many car enthusiasts. The exhaust note can greatly influence the driving experience. Here’s how Stillen and Z1 headers compare:
- Stillen: Produces a deep, throaty growl that resonates well at high RPMs.
- Z1 Motorsports: Offers a more refined sound, with a smooth tone that appeals to a broader audience.
Power Gains Comparison
Power gains are often the primary reason for upgrading headers. Both Stillen and Z1 headers provide significant improvements, but there are nuances to consider:
- Stillen: Users have reported gains of approximately 15-20 horsepower and improved throttle response.
- Z1 Motorsports: Gains can range from 20-25 horsepower, with a noticeable increase in low-end torque.
Dyno Testing Results
To provide a clear comparison, both headers were tested on a dyno. The results showcased the differences in performance:
- Stillen Headers: Peak horsepower of 310 at the wheels.
- Z1 Motorsports Headers: Peak horsepower of 320 at the wheels.
Conclusion
Choosing between Stillen and Z1 Motorsports headers ultimately depends on personal preference regarding sound and performance. Stillen headers offer a deep, aggressive tone with solid power gains, while Z1 headers provide a refined sound with slightly higher performance. Both options are excellent choices for enhancing the 370Z experience.