is factory 7 too much pipe for a stock engine?

DirtyBlasterd

Member
Oct 14, 2011
56
0
32
northern michigan
i could get a good deal on a used factory 7(phantom) pipe and silencer, but i saw a post on here that indicated right bend pipes like that are more for big bore engines. would this set up be ok on a stock engine?
 
i'd jump all over that pipe, it'll be fine and allow room to grow with other mods and engine work

add an air filter and maybe some different reeds, then possibly a bigger carb eventually to unlock it's full potential
then next time it needs a piston, get the cylinder ported and hang on !!!!!!!
 
I have bean looking for one of these very same pipes I am actualy rebuilding my motor and sending it out to ken for porting and head work. I have a buddy that put one on a stock motor and it was very impressive. I have an opportunity to buy an air stryker for 80.00 bucks so we are going to put the 28mm pwk on his bike to get a little more from the f7 We are waiting on jets and reeds I will post a vid when everything gets installed.
 
anyone who says the f7 pipes don't have any low end, doesn't know how to completely jet a bike, just change main jets
adjust all 3 jetting ranges properly and any exhaust can have power everywhere
 
I run this pipe and it pulls well from bottom to top on my ported engine. It should do well throughout the RPM range, even on a stock engine.
 
thanks guys, i dont really know what my riding style is, im no pro racer, but i dont just put around trails either. i like to ride as fast as possible all the time, accelerate as fast as possible, and basically ride like an a-hole