I purchased new GPR exhaust for my 695. They came from Italy within 3 days, and the salesman was real helpful. But when I went to put them on today, the mid piping would not fit properly. I had to even displace my oxygen sensor? to fit one of them on, and unable to replace it. Has anyone else used them, or have any experience with a similar issue?
Are you talking about that black box? That's not an oxygen sensor, that's the emissions canister. It can be removed - you need to reconfigure the hoses leading to and from it otherwise it'll cause running issues.
Also many times high mounts for monsters came with spacers and longer shoulder bolts to mount the rear sets to ensure there's enough room for the s-pipes.