02 viper

[dwin56]

02 viper lost top end

I have a 2002 sx viper 700 I put a aftermarket exhaust can w/ stock pipe,
has a lot of low end ,but lost top end .
undefinedwhat happen & how can i fix it ?

 

[sxviper65]

Put it back to stock

 

[Dave M]

Yep stock pipe...stock can.