Nope, that is a sexy little add on called a thunder jet. It makes the Super E more effective. As I previously stated I really think you have one very serious little hot rod on your hands. Whoever had it before spent the money in all the right places. They were a gearhead for sure. Very few shovels were dual plugged and thunder jetted. I could count on my hands the times I have seen it. Obviously per the pictures in the PM my Brothers and I were both equipped just like yours. It is evoking a lot of memories both good and bad watching you build it. Thanks for the great pix! And don’t forget to rattle some marbles in the gas tank to break up debris if it is in there. May or may not need to tho. A flashlight and mirror is your friend! Rock on Brother rock on!