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The Lexus IS has long been celebrated for its performance and luxury. However, enthusiasts often seek ways to enhance the driving experience further. One of the most effective modifications is the installation of a cat-back exhaust system. In this article, we will explore the power gains associated with installing a Remus cat-back exhaust system on a Lexus IS, specifically how it can yield an impressive increase of +25 horsepower.
Understanding Cat-Back Exhaust Systems
A cat-back exhaust system refers to the portion of the exhaust system that runs from the catalytic converter to the rear of the vehicle. This modification typically includes the muffler and exhaust tips, allowing for improved exhaust flow and sound. The Remus cat-back exhaust is known for its high-quality construction and performance enhancements.
Benefits of Installing a Remus Cat-Back Exhaust
- Increased Horsepower: One of the primary benefits of a Remus cat-back exhaust is the potential for significant power gains. Users have reported increases of up to +25 horsepower, depending on the model and engine specifications.
- Improved Sound: The Remus exhaust system provides a deeper, more aggressive exhaust note, enhancing the overall driving experience.
- Weight Reduction: Upgrading to a performance exhaust can also reduce weight compared to the stock system, further improving performance.
- Enhanced Aesthetics: The stylish design of the Remus exhaust tips can elevate the visual appeal of the Lexus IS.
Installation Process
Installing a Remus cat-back exhaust system can be a rewarding project for DIY enthusiasts. Here’s a step-by-step guide to help you through the installation process:
Tools Needed
- Jack and jack stands
- Socket set
- Wrenches
- Cutting tool (if necessary)
- Safety goggles and gloves
Step-by-Step Installation
- Preparation: Ensure the vehicle is parked on a level surface and allow the exhaust system to cool down.
- Lift the Vehicle: Use a jack to lift the Lexus IS and secure it with jack stands.
- Remove the Stock Exhaust: Unbolt the existing exhaust system from the catalytic converter and remove it from the vehicle. You may need to cut the exhaust if it is welded.
- Install the Remus Exhaust: Position the Remus cat-back exhaust in place and secure it using the provided hardware. Make sure all connections are tight.
- Check for Leaks: Start the engine and check for any exhaust leaks around the connections.
- Lower the Vehicle: Once everything is secure, lower the vehicle back to the ground.
Performance Testing
After installing the Remus cat-back exhaust, it’s essential to test the performance gains. Here are a few ways to evaluate the improvements:
- Dyno Testing: A dynamometer can measure the horsepower and torque before and after installation, providing concrete data on performance gains.
- Seat-of-the-Pants Feel: Many drivers report a noticeable increase in throttle response and acceleration, which can be felt during everyday driving.
- Sound Quality: Listen for the enhanced exhaust note, which should be deeper and more aggressive compared to the stock system.
Conclusion
Installing a Remus cat-back exhaust on your Lexus IS is a fantastic way to boost performance and enhance the driving experience. With the potential for +25 horsepower gains, improved sound, and an attractive appearance, this modification is well worth considering for any enthusiast. Whether you choose to tackle the installation yourself or seek professional help, the benefits of a Remus exhaust system will certainly make your Lexus IS stand out on the road.