the Mrs clouted a kerb 3 weeks ago, knackered 2 alloys and knocked the tracking out, so am due to replace inner and outer tie rods/track rod ends on both sides ad they’re seized solid.

On test driving it since, it seems to of developed a deepish burble when ticking over. It’s not like a blowing exhaust (I hope), it’s kind of like an older turbo car with a throaty exhaust fitted, any ideas?

Sorry, not hugely specific a description

Catalyst element dislodged? You can test if there is a leak in your exhaust by putting a hand wrapped in a rag over the pipes to temporarily block it. It should build up a lot of pressure quickly without any hissing sounds from under the car......