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The Lexus SC300 is a classic sports coupe that offers a blend of performance and luxury. One of the most effective upgrades you can make to enhance its performance is an exhaust swap. In this article, we will walk you through the step-by-step process of installing a Borla cat-back exhaust system, which is designed to improve exhaust flow and enhance the overall sound of your vehicle.
Tools and Materials Needed
- Borla Cat-Back Exhaust System
- Socket Set
- Wrench Set
- Jack and Jack Stands
- Safety Glasses
- Gloves
- Torque Wrench
- Exhaust Hanger Removal Tool
Preparation
Before starting the installation, ensure your vehicle is parked on a level surface and the engine is cool. Gather all necessary tools and materials. Wearing safety glasses and gloves is recommended for protection during the installation process.
Step 1: Lift the Vehicle
Using a jack, lift the rear of the Lexus SC300 and secure it with jack stands. This will provide you with enough space to work comfortably underneath the vehicle.
Step 2: Remove the Stock Exhaust System
Start by locating the stock exhaust system. Use a socket or wrench to remove the bolts connecting the exhaust pipes to the catalytic converter. Be sure to keep these bolts as they may be reused during the installation of the new system.
Next, use the exhaust hanger removal tool to detach the hangers holding the exhaust system in place. Carefully lower the stock exhaust system and set it aside.
Step 3: Prepare the Borla Cat-Back System
Unbox the Borla cat-back exhaust system and lay out all components. Familiarize yourself with the parts, which typically include the muffler, tailpipes, and necessary hardware.
Step 4: Install the Borla Muffler
Begin the installation by attaching the Borla muffler to the catalytic converter using the provided clamps. Align it properly and tighten the bolts to secure it in place. Make sure to use a torque wrench to achieve the manufacturer’s recommended torque specifications.
Step 5: Attach the Tailpipes
Next, attach the tailpipes to the muffler. Ensure that the pipes are routed correctly and do not interfere with any suspension components. Use the clamps provided to secure the tailpipes to the muffler, tightening them as needed.
Step 6: Secure the Exhaust System
Once the tailpipes are in place, use the exhaust hanger removal tool to reattach the hangers to the vehicle’s frame. Make sure everything is aligned properly and that there is adequate clearance from the undercarriage.
Step 7: Final Checks
Before lowering the vehicle, double-check all connections and ensure everything is tight. Look for any signs of misalignment or interference with other components. Once satisfied, lower the vehicle back to the ground.
Step 8: Test Drive
Start the engine and let it idle for a few minutes to check for leaks. Listen for any unusual noises that could indicate a problem. Take the SC300 for a test drive to experience the improved sound and performance of your new Borla exhaust system.
Conclusion
The installation of a Borla cat-back exhaust system on your Lexus SC300 can significantly improve exhaust flow and enhance the driving experience. By following this step-by-step guide, you can successfully complete the exhaust swap and enjoy the benefits of your upgrade.