Table of Contents
The LS engine swap has become a popular choice among automotive enthusiasts looking to boost performance. One of the most effective ways to increase horsepower is by upgrading the exhaust and intake systems. This article explores the best upgrades to take your LS engine from 200 to 400 horsepower.
Understanding the LS Engine
The LS engine series, known for its reliability and performance, is a small-block V8 engine produced by General Motors. These engines are versatile and can be found in various GM vehicles, making them an ideal choice for swaps. Understanding the engine’s capabilities and limitations is crucial for maximizing its performance.
Importance of Exhaust and Intake Upgrades
Upgrading the exhaust and intake systems is essential for improving airflow and enhancing engine performance. A well-designed exhaust system reduces back pressure, while a high-performance intake system increases the volume of air entering the engine. Together, these upgrades can significantly boost horsepower.
Best Exhaust Upgrades
When selecting an exhaust system for your LS swap, consider both performance and sound. Here are some of the top exhaust upgrades:
- Long Tube Headers: These headers provide the best airflow and can improve horsepower by 20-30 HP.
- Cat-Back Exhaust Systems: A quality cat-back system can enhance sound and performance, adding 10-20 HP.
- High-Flow Catalytic Converters: These converters reduce restrictions and can help gain an additional 5-15 HP.
- Axle-Back Exhaust Systems: For those looking for a sound upgrade with minimal installation, axle-back systems are a great option.
Top Intake Upgrades
Improving the intake system is just as important as upgrading the exhaust. Here are some recommended intake upgrades:
- Cold Air Intakes: These systems draw cooler air from outside the engine bay, improving combustion efficiency and adding 10-20 HP.
- High-Performance Intake Manifolds: Upgrading to a performance manifold can increase airflow, yielding gains of 15-30 HP.
- Throttle Body Upgrades: Larger throttle bodies can improve throttle response and airflow, potentially adding 10-15 HP.
- Fuel Injector Upgrades: Upgrading to high-flow fuel injectors ensures adequate fuel delivery for increased horsepower.
Combining Upgrades for Maximum Power
To achieve the best results, it’s essential to combine exhaust and intake upgrades. For instance, pairing long tube headers with a cold air intake can create a significant increase in horsepower. Here are some combinations to consider:
- Long Tube Headers + High-Flow Cat-Back System: This combination can yield up to 50 HP gains.
- Cold Air Intake + High-Performance Manifold: Expect an increase of around 30 HP.
- Throttle Body + Cold Air Intake: This pairing can enhance throttle response and add approximately 20 HP.
Considerations for Your LS Swap
When planning your exhaust and intake upgrades, keep the following considerations in mind:
- Compatibility: Ensure that all components are compatible with your specific LS engine model.
- Installation: Some upgrades may require professional installation, especially headers and manifolds.
- Tuning: After making upgrades, a proper tune is necessary to maximize performance and ensure engine longevity.
- Budget: Plan your upgrades according to your budget, as some components can be costly.
Conclusion
Upgrading the exhaust and intake systems of your LS engine is a proven way to boost horsepower from 200 to 400 HP. By carefully selecting the right components and combining upgrades, you can significantly enhance your vehicle’s performance. Remember to consider compatibility, installation, and tuning to achieve the best results.