Gibson 18815 Cat-Back Single Exhaust System for Toyota 4Runner 4.0L, Aluminized

Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepower at low-end (1800 to 3000 RPM). Horsepower gains average 10-15 and 15-20lb-ft of increase torque. Hassle free, bolt-on installation with professional looking results. No welding required. Backed by a Lifetime Limited Warranty. Cat-Back Single Exhaust System; Aluminized

• Incl. Hardware/Factory Style Hangers For Easy Bolt-On Install
• Baffled/Chambered Muffler; No Internal Packing
• Minimal Interior Drone - Aggressive Sound
• Polished Stainless Steel Slash-Cut Tips
• Aluminized Mandrel Bent Tubing
• Lifetime Limited Warranty
• Superflow™ Muffler

Upgrade your compatible Toyota 4Runner with the Gibson 18815 Cat-Back Single Exhaust System, engineered to improve acceleration, hill-climbing performance, towing response, and passing power. Designed for select 2010–2015 Toyota 4Runner models equipped with the 4.0L engine, this aluminized exhaust system exits behind the rear tire and delivers strong low-end performance. Dyno testing shows maximum torque and horsepower gains from approximately 1,800 to 3,000 RPM, with average increases of 10–15 horsepower and 15–20 lb-ft of torque.
The Gibson 18815 features mandrel-bent aluminized tubing and a Superflow™ baffled, chambered muffler with no internal packing. Its aggressive exterior sound is balanced by minimal interior drone for a more comfortable driving experience. A polished stainless steel slash-cut tip provides a clean, professional appearance, while factory-style hangers and included hardware support a straightforward bolt-on installation. No welding is required, making this system a practical upgrade for enthusiasts, daily drivers, and towing applications.
Designed for reliable performance and long-term use, the Gibson single exhaust system includes a Lifetime Limited Warranty. Professional-looking results and hassle-free installation make it an effective replacement or upgrade for the original exhaust system. Verify vehicle configuration and application details before ordering. This product may require applicable emissions-related acknowledgment and is not identified as CARB approved.

Features:

• Cat-back single exhaust system for select 2010–2015 Toyota 4Runner models with the 4.0L engine

• Aluminized mandrel-bent tubing for consistent airflow and durable performance

• Superflow™ baffled and chambered muffler with no internal packing

• Aggressive exhaust sound with minimal interior drone

• Polished stainless steel slash-cut exhaust tip

• Factory-style hangers and included hardware for easy bolt-on installation

• No welding required

• Optimized for low-end horsepower and torque gains

• Exits behind the rear tire

• Backed by a Lifetime Limited Warranty

Compatible With
2004 Toyota 4Runner
2005 Toyota 4Runner
2006 Toyota 4Runner
2007 Toyota 4Runner
2008 Toyota 4Runner
2009 Toyota 4Runner
2010 Toyota 4Runner
2011 Toyota 4Runner
2012 Toyota 4Runner
2013 Toyota 4Runner
2014 Toyota 4Runner
2015 Toyota 4Runner
2016 Toyota 4Runner
2017 Toyota 4Runner
2018 Toyota 4Runner
2019 Toyota 4Runner
2020 Toyota 4Runner
2021 Toyota 4Runner
2022 Toyota 4Runner
2023 Toyota 4Runner
2024 Toyota 4Runner