Absolutely not. Jet ski exhaust need zero back pressure. That’s a old myth that won’t die. Velocity is your friend with a exhaust. Especially one cooled by water. No exhaust we make will hinder your performance
@@cowboybishopvids6570why don’t you just include this in the kit? Adjust the price accordingly and include it. Just my opinion, it always nice to buy a complete package, we sometime buy things in a hurry and then in arrives and we have to order another part to complete the mod.