09 ZX6 with Jardin slip on

[Flap]

This has been installed and it back fires....will the back fire cause harm?:confused

 

[Gorecki]

Is it one of their GP styles? Don't think it's going to explode but I don't think some places will let you ride with a backfire like that. From the sounds of things you haven't had the computer tweaked? Best time to go to a Power Commander as well, get it dyno'd and dialed and you'll be in great shape. I've been very tempted to go with the M4 gp style with a PC on my '09.