I’ve had my RL/KB2 for about 2-3 months just need some suggestions on a intake and exhaust

 

Hi and welcome to the site! You've come to the right place - there are lots of great choices for parts, service and many owners willing to help you. Good luck and keep us posted!

 

to be honest, an off the shelf intake will not do anything except make a louder roar.
if you wanted to actually make power, you would have to custom make the intake... you can use PCV piping. you would want to use 4" diameter piping... the off the shelf air intakes are 2.5" in diameter and cost like $300. so, you would effectively buy a $300 noise maker.

and sadly, there isnt any off the shelf exhausts....you would need to custom make that too at an exhaust shop.