Slip-on's and the cat ...

[draughtrider]

Just looking at fitting my slip-ons and on removing the stock exhaust I notice there is what appears to be thick silver sealant that the stockies mounted over. Looking at my slip-ons there is no way they will go over this sealant but they will obviously go over the inch or so of straight pipe that doesn't have sealant.

Just wondering - do I remove the sealant and push the slip-ons 'further on' or just bolt them up firm against where the sealant ends?