Did they say where the exhaust was leaking from, usual culprit area is where the mid pipe meets the rear silencer, if so, then either the Scorpion or Cobra will overcome the above issue as they both replace the mid pipe and rear silencer.
Best to check where the leak is from though first, if it’s the above it should be fairly easy to check and confirm.
The Cobra takes circa a week, as they’re made to order, the Scorpion is about the same too, the Cobra allows you to choose the tailpipe too, so you can customise it, you can choose from one of these tail pipe choices…