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The Infiniti G35 is a popular choice among car enthusiasts looking to enhance performance and sound. One of the most common upgrades is the exhaust system. This article compiles real owner reports to explore how much horsepower (HP) gains can be expected from various Infiniti G35 exhaust upgrades.
Understanding Exhaust Upgrades
Upgrading the exhaust system can significantly affect the performance of the Infiniti G35. The exhaust system is responsible for expelling gases from the engine, and a more efficient system can lead to improved airflow, which can enhance horsepower. Here are some key components of exhaust upgrades:
- Cat-back Exhaust Systems: These replace the exhaust from the catalytic converter back, improving flow and sound.
- Headers: Upgrading headers can reduce back pressure and improve exhaust flow from the engine.
- High-Performance Catalytic Converters: These can increase flow while still meeting emissions standards.
Owner Reports on HP Gains
Many G35 owners have shared their experiences after upgrading their exhaust systems. Below are some key insights and reported horsepower gains from various upgrades:
Cat-Back Exhaust Systems
Cat-back exhaust systems are among the most popular upgrades for the G35. Owners report varying gains depending on the brand and installation quality. Here are some examples:
- Invidia Gemini: Reported gains of 15-20 HP.
- Stillen Cat-Back: Owners have noted increases of around 12-18 HP.
- AAM Competition: Gained approximately 20-25 HP according to user feedback.
Headers Upgrades
Upgrading to performance headers can yield significant horsepower improvements. Many owners have documented their experiences with various header brands:
- Motordyne Headers: Users report gains of 20-30 HP.
- JWT Headers: Many have seen increases of 15-25 HP.
- Fast Intentions Headers: Gains of 25-35 HP are commonly reported.
High-Performance Catalytic Converters
High-performance catalytic converters can also contribute to horsepower gains. Here’s what some G35 owners have reported:
- High-Flow Cats: Many report an increase of 10-15 HP when paired with other exhaust upgrades.
- Random Technology Cats: Users have noted gains of around 10-20 HP.
Factors Influencing HP Gains
While many owners report impressive horsepower gains from exhaust upgrades, several factors can influence the actual results:
- Installation Quality: Proper installation is crucial for maximizing performance.
- Supporting Mods: Other modifications, such as tuning and intake upgrades, can enhance overall gains.
- Vehicle Condition: The overall health of the engine and other components can affect performance outcomes.
Conclusion
Exhaust upgrades on the Infiniti G35 can lead to notable horsepower gains, with many owners reporting increases that vary by the type of upgrade and brand. Whether you choose a cat-back system, headers, or high-performance catalytic converters, understanding the potential gains can help you make informed decisions. Always consider supporting modifications and professional installation to achieve the best results.