[janis]

don't know much about this system other than its made 100% in the USA and that it shaves 7 lbs off stock.

Aluminum Factory 4.1RCT SL (Slip-On) Carbon End Cap $349.99

Aluminum. Factory 4.1RCT Competition System with Carbon Cap and Stainless Steel Header $399.99

the slip and full system are not intended for street use, but does that make them illegal?

Wish i could find power figures, the website only says MASSIVE power gains...

Products - Bike Finder - FMF Racing

 

[chye]

shoot them an email and ask for dyno sheets

is it illegal? probably.. depends what state you are in too I guess.

Will anyone really bother you for it on a 250cc? Maybe not.

 

[mr.smith]

Looks like fun but I wouldn't buy it until I knew more about exactly what kind of power gains I should be expecting. I wouldn't be too worried about them being illegal, but you should still figure that out so that you can avoid getting a ticket or something because you drive by a cop at the wrong time.

 

[GromGuy]

Tried looking for video's of this exhuast system, none. It would help if they had something uploaded.

 

[janis]

I emailed FMF and they said they would not be focusing on any street applications for the GROM. They don;t want to have to deal with emissions regs..

ah well its not like we're without options

 

[motogp431]

I just ordered the full exhaust. Its on backorder for a week I was told. Will post when I get it installed. Should I get the full system or slip on if only modding the airbox and no power commander or ecu parts?

 

[Jake Tschirhart]

Did you get the exhaust system in yet? Still curious how it actually sounds and looks. Thanks!

 

[hypergrom]

I just installed the full system. Sounds great not too loud. Seems to pull better on the top end