Description
Apollo GT Series 3-Inch 409 Stainless Steel Cat-Back Exhaust System
Enhance performance, sound, and style with the Apollo GT Series 3-Inch Cat-Back Exhaust System from aFe POWER. Precision engineered and dyno-tested, this exhaust system delivers gains of up to +14 horsepower and +17 lb-ft of torque (tested on a 5.3L application) while maintaining excellent drivability and daily comfort. Constructed from high-quality 409 stainless steel, this system provides long-lasting durability, increased exhaust flow, and a deep, aggressive exhaust note.
Designed as a direct bolt-on upgrade, the Apollo GT Series installs easily using factory mounting points and retains the spare tire, making it an ideal performance upgrade without sacrificing practicality.
Key Features & Benefits
High-Flow Stainless Steel Muffler
The system features a high-flow, single-in/dual-out stainless steel muffler engineered to absorb unwanted high-pitched tones. The result is a powerful, aggressive exhaust sound that enhances performance without excessive drone.
3-Inch Mandrel-Bent Stainless Steel Tubing
Built from 3-inch mandrel-bent 409 stainless steel tubing, this exhaust system ensures smooth exhaust flow with minimal restriction. Precision bends reduce turbulence, improving horsepower, torque, and throttle response.
Aggressive Dual 4.5-Inch Black Exhaust Tips
Finishing the system are dual 4.5-inch black stainless steel exhaust tips, featuring laser-cut stainless steel aFe POWER logo plates riveted in place for a bold, performance-driven appearance.
OE-Style Fit and Stability
OE-style bayonet hangers are used to maintain proper exhaust alignment under high heat and vibration. This design keeps the exhaust securely positioned and prevents sagging or movement over time.
Leak-Free Connections
High-quality OE-style flanges and stainless steel band clamps provide a complete 360-degree sealing surface, eliminating exhaust leaks and ensuring long-term reliability.
Hassle-Free Installation
This cat-back exhaust system installs easily with no cutting or modifications required. All necessary hardware, including OE-style hangers and an included bolt-on bracket to support the driver-side tailpipe, is supplied for a clean, professional installation.
Retains Spare Tire
The system is engineered to fit perfectly while retaining the factory spare tire, preserving full vehicle functionality.
Additional Information
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Wheelbase Compatibility: Fits models with 143.5-inch or 153-inch wheelbases only
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Emissions: Does not require a CARB EO number
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Manufacturing: Designed and manufactured in Corona, California, USA
Vehicle Fitment
Chevrolet
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2009–2013 Silverado 1500 | 4.8L V8
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2009–2018 Silverado 1500 | 4.3L V6
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2009–2018 Silverado 1500 | 5.3L V8
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2019 Silverado 1500 LD | 5.3L V8
GMC
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2009–2018 Sierra 1500 | 4.3L V6
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2009–2018 Sierra 1500 | 5.3L V8
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2010–2013 Sierra 1500 | 4.8L V8
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2019 Sierra 1500 Limited | 5.3L V8
Upgrade your truck with the Apollo GT Series 3-Inch Cat-Back Exhaust System for improved performance, aggressive sound, durable stainless construction, and factory-quality fitment.
