sx viper pipe mod

[cusson]

did anybody heard something about removing the restrictor on the sx viper tune pipe.
peaple cut the pipe around 3 inch of the flange that goes to silencer, remove the little restrictor (in the pipe if you remove the silencer and look with a light in the pipe(not silencer) you'll see a pipe that restrict the flow, after welding the pipe and it's done
my friend just bought a sx viper and it is done on it.... and the guy said that was increaser power a bit but he doesn't know if he change the jet because it was done by a yamaha dealer....

did anybody already see that on viper ..?

 

[FJViper]

There has been talk on here about doing it, but to my knowledge, nobody has. Wonder if it makes the flow comparable to a Bender? How does it sound?

 

[A couple of bucks]

cut the pipe,remove the little restrictor,welding the pipe and it's done by a yamaha dealer

And this was done by an actual Yamaha dealer w/o changing the mains?

 

[cusson]

the mains jets are probably changed but the guy that sell it to my frends is don't know id it was really made...
today I see that the pipe wasn't the same that my 02 viper but in the parts catalog it the same .....
I will do some reseach about what pipe it is