Ok, my friend went ahead and went with the yoshimura comp series full exhaust for his 05 raptor instead of Gytr...question is now what size of jets does he need and is there anything else you recommend him to buy?

thanks for the replies and i know i can trust u guys cus i have seen some pretty fast raptors come out of here.

 

what kind of jets? dynojets, mikunis what?

 

whatever jets come stock in the 05 raptor....mikuni im guessing.

thanks

 

not sure about mikuni, i ran 146/148 dj with my yosh , it should have jetting recommendations with the pipe

 

well the thing is that he's getting it off ebay, and it doesnt say that it comes with a booklet or anything...soo we were just curious what you guys are running....

i think i read somewhere else that its like 150/155 and 3 1" holes in the airbox? something like that.

 

I would recommend getting the pro design filter, pull off the lid completely, and start out at 148/150 dynojets. Tell him to take the lid off for maximal performance, but it requires bigger jets. Elevation has a factor too.