TE/TC Fmf factory 300 pipe?

I run the FMF Gnarly with factory silencer on my 2015 TE250. Needed to go with bigger main jet as per chart in book. Jetting was still off a little. Put a 2008 Suzuki rm250 needle in the carb. What a huge difference no part throttle surge. really cleaned up the way it runs.

48 pilot
ncvs needle 3rd clip

165 main

Hope this helps

48 pilot??? wow.

i have had the power parts pipe for a while on my 300, its a KTM spec pipe not a fatty.
its a little snappier of the bottom but not much in it, if you like the stock pipe its basically same a stock in the first half of the power range but upper mid to top end if keeps pulling were stock starts to fall off, more over rev also, on fire trails or in the desert you real noticed the extra power pulling power.
ST riding it feel like a stock pipe with a smoother transition into the mid range, its pretty well got a broader range of usable power over stock.
great choice if you like the stock pipes power but you want a thicker pipe.