I want to get the White Brothers R4 exhust and a K&N Jet Kit. Has anyone tried this setup and if so do you recommend it. Is the Jet Kit worth buying because I heard that they don't even make a difference. If the jet kit is worth buying and my altitude 1135 feet which setup would work best.

 

Well I have the WB Pro meg and its very loud, powerful, and fast. I love it. I just cant hear out of my right ear! LOL! I dont know about the jet because I have not put mine on yet because I cant get my screws of that section of the carb. But my friends on their recons said they noticed a lot of power and throtle responce.

 

I have not yet put a pipe on mine , but I installed the jet kit along with a uni-filter and no airbox lid(clamp-on style filter/alum. flange) and I noticed a roughly 5-10% power increase and it cleared up a flat spot around 1/4 throttle.I definitely think it's worth installing.Just follow the instructions they ask if you have aftermarket exaust,filter,altitude,etc...The R4 is nice,I'm thinking that or an FMF Megamax.