your going to want to drill a hole into your pipe 6-12 inches from the throttle body try to line it up pretty straight to the tb if possible. im not sure what brand you have but nos comes with a threaded piece of small pipe you insert into the hole you drileed, it then had a lock nut on the other side so that it will be secured. you then insert the nozzle into this with the opening facing the throttle body. its pretty straight forward. gl :thumb: