aFe Apollo GT Series 3 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polish Tip (49-44112-P)

aFe POWER is proud to introduce the Apollo GT Series dual rear exit cat-back exhaust system for the 2014-2019 GM Silverado/Sierra 1500 with V6-4.3L/V8-5.3L engines. This cat-back 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 improving throttle response. In testing, this system resulted in gains up to +14 horsepower and +17 lbs. x ft. of torque verified by our in house dyno (vehicle tested with 5.3L engine). A hi-flow 21" single-in dual out muffler is included which improves performance while maintaining an awesome sound. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driver side tailpipe. The aFe POWER rear exit exhaust system was designed to retain the spare tire and includes high quality band clamps and OE-style bayonet hangers. This makes for an easy installation with no cutting required. To finish off the exhaust, dual 4-1/2" polished stainless steel tips with a laser-cut stainless steel aFe POWER badges for an aggressive style. This kit retains your spare tire and includes high quality band clamps and OE-style bayonet hangers for a hassle-free installation.

Features:

• Increases horsepower and torque
• Improves performance
• Lowers exhaust gas temperature
• Flow bench and dyno tested
• Welded hangers with swaged ends
• Slotted and swedged ends
• Premium quality band clamps
• Backed by a 2-year limited warranty
• Proudly made in the USA

A performance exhaust system is one of the most common ways of improving a vehicle's operation. The theory is simple; just reduce restriction to increase exhaust flow and you gain power. But all exhaust systems are not created equal; in reality there's more to it than just selling some sewer pipe sized tubes.

aFe tests its systems on the flow bench and the dynamometer to determine the right pipe size and muffler construction. Then they mandrel bend the pipes to ensure they maintain their shape and size throughout the entire length, to provide smooth, unrestricted airflow. Tubes that are not mandrel bent can lose up to 20% of their diameter in sharp bends. Some systems also include a straight muffler delete pipe if a more aggressive sound and maximum flow is desired. A typical aFe system will increase exhaust flow by up to 29% and lower EGT (Exhaust Gas Temperature) by up to 100º, with a corresponding improvement in power and performance.

But performance is only part of the equation. A quality exhaust system should be easy to install and made to last. The muffler and all pipes of the Apollo GT system are constructed from durable 409 stainless steel. To ensure a tight seal, slotted and swedged ends are used whenever possible. When used with the supplied premium quality band clamps, the tightest, leak-free seal is the result. Every hanger is thoroughly welded on each side to ensure a strong attachment and the hangers also feature swaged bayonet ends to lock in place once installed.

DETAILS:

• Up to +14 HP and +17 lbs. x ft. TQ (vehicle tested with 5.3L engine)
• Utilizes a high-flowing stainless steel single-in dual out muffler to absorb high pitch tones for a powerful sound
• Constructed out of 3" MIG-welded, mandrel bent stainless steel tubing
• Dual 4-1/2" polished stainless steel tips with a laser-cut stainless steel aFe POWER badges
• Comes complete with all necessary hardware no cutting or modifications required for a hassle-free installation
• This system retains the spare tire