The Ti-4 Slip-On offers huge performance gains when compared to stock OEM exhausts. This silencer is designed to bolt onto the stock head pipe or Pro Circuit head pipes in a matter of minutes. Not only will horsepower and torque increases be noticed throughout the entire power curve; but the Ti-4 is constructed of titanium; meaning a substantially lighter silencer compared to stock. Titanium construction throughout mid pipe; canisters and end-caps Increase in horsepower and torque throughout power curve Equipped with removable USFS approved spark arrestor Strong mounting bracket (s) for increased durability Lighter weight compared to stock Note: Image for reference only. Actual product may vary according to vehicle.