The Gibson Extreme Twin Core Dual Exhaust will increase the flow of your exhaust by 43 adding plenty of power to the powerful 750 to help overcome the obstacles you and your passengers may see. Gibson SFT Super Flow non - packed mufflers Guarantee a consistent level of sound and performance quality for the duration of your vehicles lifetime. The bolt on high quality Stainless system is finished off with a mirror bright polished T304 Stainless Exhaust End cap and all the necessary hardware to complete a hassle free installation. The Extreme Twin Core Slip on was tested with a decibel reading of 101 dbs per the SAEJ 1287 Testing procedure.