If you’re looking for increased performance, there is no faster(or less expensive) way to get it than a Pro Circuit Slip-On silencer. The T-4 slip-on silencers offer huge performance gains when compared to stock OEM exhausts. Silencers will bolt on to the stock or Pro Circuit head pipes in a matter of minutes. In addition to the extra power, the slip-on T-4 silencers are substantially lighter. Designed to be easily re-packed to keep performance at its peak. Horsepower and torque are increased throughout the entire power curve.