Our new TB was designed to give you tons more hp and throttle response than ANY of our competitors, in house built in the USA! and tested, we dynoed oem back to back an obtained a overall of 12hp increase! thru the midrange we were able to acheive over a whopping 25hp increase! Our 68mm tb is designed to perform as well as enhance the underside of the hood!We now also have incorporated two ports in each side of the underside of the throttle body for NOS hookups! so now you can really Unleash the power your Viper wants to release! You will reuse your oem throttle shaft, comes with new blades and mounting hardware! THIS IS A SPECIAL ORDER ITEM , PLEASE ALLOW 3-4 WEEKS FOR DELIVERY!!