aFe Atlas Exhaust 4in Aluminized Cat-Back w/ 304 SS Polished Tip 11-13 Ford F-150 EcoBoost V6 3.5LThis Atlas Cat Back exhaust system is constructed of 4 in. mandrel bent steel. Comes with Tubing; OE Style bayonet hangers; band clamps and all hardware necessary for a hassle free installation. The smooth curves and increased diameter of this exhaust system helps remove restriction and keeps exhaust gas flowing smoothly for increased horsepower and torque. Installation is a snap. This system uses all factory mounting locations providing stability and

The internal velocity stack provides a low-turbulence transition from the filter to the inlet

all the way down to the side vents

improved sports car sound and maximum durability

Soft Part Replacement Packages for existing air intake systems 51-80072

Any other boost tap can be ordered separately

OE Part # 4B0905849 / 4B0-905-849 / 4B0 905 849

Boost Tap Kit for VAG 1

Which can be added to the order

This system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability

the stage 2 engine calibration delivers additional top end power where you need it most when driving competitively

Meet the tuning guru in your pocket

No Tuning Required - Works with Stock or Stage 1 Off The Shelf Map