Slip-on's and the cat ...

[Ward P]

If you can't push it up over the sealant, I'd be removing it. Check once fitted, but your slip-ons should seal sufficiently without applying new exhaust sealant. Don't worry about the cat. It's in the collector, so replacing your mufflers with slip-ons doesn't lose the cat.

Autobarn/supercheap etc. will sell the sealant if needed.