Ok so yesterday i put a moto gp exhaust on my f4i and everything seems to run fine, other than it sounding hella friken loud and waking everyone up on my block lol... but as i rode for the first 10 miles or so it got way hotter than usual. i'm guessing this is due to the lack of back pressure from what i'm reading in all the other threads. but my questions is how hot it too hot first of all. and how important is having a decent amount of back pressure? i also was told that there is a 100 mile break in for it too... i'll try and post up some pics so everyone can see. i understand the potential problem with burning up the valves i think...

 

this would happen to be the gp exhaust from ebay??

from wat I have read...bad back pressure and burn up valves o rings or something along that line.

 

yeah man if you bought that piece of junk exhaust tip off ebay you would be better off throwing it away.. seriously.

 

word...u get what u pay for...the only gp exhaust I knoe for for the f4i is the HR1 riot pipe

 

lol woops... thanks guys... so that hr1 riot pipe is decent though?

 

I have the riot pipe, its overpriced but I love it

 

hey would u mind posting pics??? I do not knoe anyone with this exhaust..I would like to see other pictures other than the manufactures site

 

Theres plenty in my profile, I'll be happy to answer questions. You do have to trim your fairing to get it to fit.

 

thanks..I"ll check it out.

I kinda interested how it is performance wise and how low end or backpressure was affected.

 

I went from a D&D to the Riot and I didnt notice a performance difference