Was pricing out a new KFX/Z 400 among the local dealers. I requested the price-out for the bike, pro flow kit, and a complete Pro Circuit Exhaust system (headers and can) based off the recent dirtwheels issue on the pipe shootout. Two dealers steered me to the Yoshi complete set saying that is the one their parts/maintenance people say work the best as far as power for the z400...two dealers referenced this. Does anyone have either of the two on their quads and can provide me any type of feedback on them...recommends on one over the other...experience with the m both...where is the biggest power hit is...did a search and couldnt find and real input on the two...any input would be appreciated...thanks

It looks like i will be going with the KFX... dealers repeatedly offered them cheaper...here is an outlay of the pricing:

1) white z400, yoshi complete set, Pro Flow kit, Tax and L, for $6350
2) KFX, Yoshi Complete Set, K&N fitler w/ Jets, Tax and Lic, for 6175.00 - this is the one I am going to get...same quad as the z400 so i will take it for $175 cheaper and like the Kawi green actually...white looks wicked too

 

I run a Yoshi on my DS and it's been nothing but flawless. My buddy just installed a Yoshi on a Z-400 that we took to the dunes. Once the jetting was dialed in, it was beating all of the other Zs there with equal mods on the drag strip. I don't think that you can go wrong with the Yoshi.