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Apollo GT Series 3" 409 Stainless Steel Cat-Back Exhaust System

09-18 GM Silverado/Sierra 1500 V6-4.3L/V8-4.8L/5.3L (Standard Cab)
Part Number: 49-44111-B

MSRP: $1,111.69


  • Up to +14 HP and +17 lbs. x ft. TQ (tested on 2014 Chevrolet Silverado V8-5.3L)
  • Constructed out of 3" mandrel-bent stainless steel tubing
  • Utilizes a high-flowing stainless steel single-in dual out muffler
  • Uses bayonet style hangers and heavy-duty band clamps for a secure fit
  • Comes complete with all necessary hardware for a hassle-free installation
  • Includes dual 4-1/2" dia. black, stainless steel, side-exit tips with laser-cut aFe POWER badges for an aggressive style
Read More

aFe POWER introduces the Apollo GT Series cat-back dual rear exit exhaust system for the 2009-2018 Chevrolet Silverado/GMC Sierra 1500 with V6-4.3L & V8-4.8L/5.3L engine. This dual exhaust system is constructed out of 3" 100% MIG-welded, mandrel-bent, stainless steel tubing for maximum flow. The smooth transition bends allow for low turbulence, increasing horsepower, torque and improved throttle response. A free-flow single-in dual out muffler is included which improves performance across the power band while maintaining an awesome sound. In testing, the cat-back exhaust system resulted in gains up to + 14 horsepower and + 17 lbs. x ft. of torque, as measured on our in-house dyno (tested on 2014 Chevrolet Silverado V8-5.3L). Finishing off this exhaust are dual 4-1/2" diameter black tips. The tips comes with a laser-cut aFe POWERbadge riveted on for an aggressive style.

Test Results:
In testing, this exhaust system resulted in gains up to + 14 horsepower and + 17 lbs. x ft. of torque, as measured on our in-house dyno (tested on 2014 Chevrolet Silverado V8-5.3L).

Installation is a Snap:
This Apollo GT Series exhaust system includes an extension tube for regular cab/long beds and uses factory mounting locations providing stability and hassle-free installation. A bolt on hanger mount is used to support the driver side tube.

Leak-Free Seal:
High quality band clamps are used for a complete 360-degree sealing surface eliminating leak paths.

Aggressive Sound:
A straight-through designed, free-flowing stainless steel muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque.

Perfect Fit:
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. This makes for an easy installation with no cutting required.

4-1/2" Dia. Black Tip:
Finishing off this system are dual 4-1/2" diameter, black, stainless steel tips. The tips come with a laser-cut aFe POWER badge riveted on for an aggressive style.

This System Fits:
Standard Cab / 6'7" Bed (119" Wheelbase)
Standard Cab / 8' Bed (133" Wheelbase)

Emissions Disclaimer:
This product does not require a CARB EO#.

aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.


Vehicle Applications

Year Make Model SubModel Engine Fuel
2009-2018Chevrolet Silverado 1500 V6 4.3L Gas
2010-2013Chevrolet Silverado 1500 V8 4.8L Gas
2009-2018Chevrolet Silverado 1500 V8 5.3L Gas
2009-2018GMC Sierra 1500 V6 4.3L Gas
2010-2013GMC Sierra 1500 V8 4.8L Gas
2009-2018GMC Sierra 1500 V8 5.3L Gas
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MSRP: $1,111.69

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