aFe Apollo GT Series 3in 409SS GM Silverado/Sierra 1500 09-19 V6-4.3/V8-4.8/5.3L – Polished

aFe Apollo GT Series 3in 409SS GM Silverado/Sierra 1500 09-19 V6-4.3/V8-4.8/5.3L – Polished

The aFe Apollo GT Series 3in 409SS GM Silverado/Sierra 1500 09-19 V6-4.3/V8-4.8/5.3L – Polished is a high-performance dual rear exit cat-back exhaust system designed for 2009-2019 Silverado and Sierra 1500 models with V6 4.3L or V8 4.8/5.3L engines. Crafted from 3-inch mandrel-bent 409 stainless steel, it delivers improved horsepower, torque, and throttle response while maintaining a powerful, aggressive sound.

Key Features

• 3″ 100% MIG-welded, mandrel-bent 409 stainless steel tubing for maximum flow
• Hi-flow 21″ single-in dual-out muffler for improved performance and sound
• Dual 4.5″ polished stainless steel exhaust tips with laser-cut aFe POWER badges
• Uses factory mounting locations with OE-style bayonet hangers and included bolt-on bracket
• Retains spare tire and includes high-quality band clamps for leak-free sealing
• Tested gains up to +14 HP and +17 lb-ft torque on 5.3L engines

Fitment

• 2009-2019 GM Silverado/Sierra 1500 with V6 4.3L, V8 4.8L, or V8 5.3L engines
• Models with 143.5″ or 153″ wheelbase only

Note: Verify wheelbase and model year compatibility before ordering. Installation requires no cutting and uses all factory mounting points for a straightforward bolt-on fit.