Anyone using a GPR exhaust?

[Hispid]

So I fitted a GPR pipe to my Ninja 250 yesterday. I like the sound much better now. Its more of a deep rumble than tinny sound.

However I am worried it may have issues come wof time. I mean it does say on the exhaust "for racing use only".

Anyone use this particular tpye on a 250 before? Problems?

[BASS-TREBLE]

Got your stock one? It's always a last resort.

You're lucky, you have 12 month warrants, so if you do have to swap it it's only yearly.

Are they straight through? I have a 2" coby on a 1000 which makes my ears sore when in the twisties and have been pulled over twice with no complaints about it, hasn't been through a warrant yet though

[gatch]

Yo the only reason they put "race use only" on the pipe is because it is usually too loud for warrant standards, doesn't mean its going to damamge your bike, in fact it will probably run a little rich for the extra gas flow..

If the wof guys dont like it just put the standard item back on..

[steve_t]

Yo the only reason they put "race use only" on the pipe is because it is usually too loud for warrant standards, doesn't mean its going to damamge your bike, in fact it will probably run a little rich for the extra gas flow..

If the wof guys dont like it just put the standard item back on..

Doesn't increased air flow mean the bike will run leaner?
The cans normally say "race use only" or "offroad use only" for legal purposes in the US. I'm sure you'll be fine getting a WOF

[gatch]

Doesn't increased air flow mean the bike will run leaner?

Yes, right you are, man I've had the wrong idea for sometime then.

[klyong82]

So I fitted a GPR pipe to my Ninja 250 yesterday. I like the sound much better now. Its more of a deep rumble than tinny sound.

However I am worried it may have issues come wof time. I mean it does say on the exhaust "for racing use only".

Anyone use this particular tpye on a 250 before? Problems?

chuck some exhaust sticker on top of the wordings