Description
Upgrade your Silverado or Sierra 1500 with the aFe Apollo GT Series 3-Inch 409 Stainless Steel Cat-Back Exhaust System with Polished Tips. Designed for performance, style, and durability, this dual rear-exit system delivers up to +14 horsepower and +17 lb-ft of torque, while producing a bold, aggressive exhaust note that enhances every drive.
Constructed from 3-inch mandrel-bent 409 stainless steel tubing and fully MIG-welded, the Apollo GT Series ensures long-term reliability and corrosion resistance. Smooth transition bends and a high-flow single-in dual-out stainless steel muffler reduce turbulence and maximize exhaust flow, improving horsepower, torque, and throttle response. Dyno testing on a 2014 Chevrolet Silverado 5.3L V8 verified gains of +14 HP and +17 lb-ft torque.
Finishing off the system are dual 4.5-inch polished stainless steel side-exit tips with riveted laser-cut aFe POWER badges, giving your truck a premium, aggressive look. Factory-style bayonet hangers and high-quality band clamps ensure a secure, leak-free fit, while a bolt-on hanger mount supports the driver-side pipe. An extension tube is included for regular cab/long bed models, making installation simple and hassle-free.
The Apollo GT Series combines performance, sound, and durability in a sleek, OE-quality package. Like all aFe exhaust systems, it is engineered and manufactured in Corona, California.
Key Features
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Gains up to +14 HP and +17 lb-ft torque (2014 Silverado 5.3L tested)
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3" mandrel-bent 409 stainless steel tubing, 100% MIG-welded
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Free-flowing single-in dual-out stainless steel muffler
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Aggressive dual rear side-exit sound
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Dual 4.5" polished stainless steel tips with laser-cut aFe POWER badges
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OE-style bayonet hangers and high-quality band clamps for secure fit
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Bolt-on installation; extension tube included for long-bed models
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Leak-free 360° band clamp seal
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Durable, race-proven construction
Fitment
Cab & Bed Configurations:
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Regular Cab / Short Bed – 6.6 ft (119" wheelbase)
Vehicle Applications:
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2009–2018 Chevrolet Silverado 1500 – 4.3L V6 Gas
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2009–2018 Chevrolet Silverado 1500 – 4.8L V8 Gas
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2009–2018 Chevrolet Silverado 1500 – 5.3L V8 Gas
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2009–2018 GMC Sierra 1500 – 4.8L V8 Gas
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2009–2018 GMC Sierra 1500 – 5.3L V8 Gas
Emissions Disclaimer
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Cat-back exhaust system
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CARB EO not required
