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The Toyota A90 Supra has captured the attention of car enthusiasts and tuners alike since its release. One of the most popular modifications for this vehicle is the exhaust system. In this article, we will compare the stock exhaust with the GReddy Titanium Exhaust through dyno testing, analyzing the differences in performance, sound, and overall driving experience.
Understanding Exhaust Systems
An exhaust system is crucial for the performance of any vehicle. It plays a significant role in managing the flow of exhaust gases, which affects engine efficiency and power output. Upgrading to a performance exhaust can enhance these aspects significantly.
Stock Exhaust Overview
The stock exhaust system on the A90 Supra is designed for a balance of performance and noise regulation. It features:
- Single exit design
- Moderate sound level
- Weight: Approximately 45 lbs
While the stock exhaust meets the needs of daily driving, many enthusiasts seek more performance and a sportier sound.
GReddy Titanium Exhaust Overview
The GReddy Titanium Exhaust is a popular aftermarket option for the A90 Supra. Its features include:
- Dual exit design
- Aggressive sound profile
- Weight: Approximately 25 lbs
This exhaust system is designed to enhance both performance and aesthetics, making it appealing to those looking for a more aggressive driving experience.
Dyno Testing Methodology
To compare the two exhaust systems, we conducted a series of dyno tests under controlled conditions. Each exhaust was tested on the same vehicle, ensuring consistency in results. The tests measured:
- Horsepower output
- Torque output
- Exhaust sound levels
The results provide valuable insights into the performance differences between the stock and GReddy exhaust systems.
Dyno Results
After completing the dyno tests, we obtained the following results:
- Stock Exhaust:
- Peak Horsepower: 335 hp
- Peak Torque: 365 lb-ft
- GReddy Titanium Exhaust:
- Peak Horsepower: 360 hp
- Peak Torque: 380 lb-ft
The GReddy Titanium Exhaust provided a noticeable increase in both horsepower and torque, highlighting its performance advantages over the stock system.
Sound Comparison
Sound is a crucial factor for many drivers when selecting an exhaust system. During our tests, we recorded sound levels at idle and under acceleration:
- Stock Exhaust:
- Idle Sound Level: 75 dB
- Acceleration Sound Level: 85 dB
- GReddy Titanium Exhaust:
- Idle Sound Level: 80 dB
- Acceleration Sound Level: 90 dB
The GReddy exhaust produced a deeper, more aggressive sound, appealing to those looking for a sportier exhaust note.
Driving Experience
Beyond the numbers, the driving experience is a significant factor when choosing an exhaust. Drivers reported the following differences:
- Stock Exhaust:
- Comfortable for daily driving
- Less aggressive sound
- GReddy Titanium Exhaust:
- More responsive throttle
- Exciting sound during acceleration
Many drivers found the GReddy exhaust enhanced their overall driving enjoyment, especially in performance settings.
Conclusion
In conclusion, the dyno comparison between the stock and GReddy Titanium Exhaust on the A90 Supra shows clear performance benefits with the aftermarket option. The GReddy exhaust not only increases horsepower and torque but also provides a more engaging sound and driving experience. For enthusiasts looking to enhance their Supra, the GReddy Titanium Exhaust is a worthy investment.
Ultimately, the choice between the two exhaust systems will depend on individual preferences regarding sound, performance, and daily drivability.