Exhaust part numbers and sources

Hi 

Hoping someone will be able to assist me. 

My friend (not currently a member) has just purchased a 06 MK2 petrol VRS, I believe the engine code is BWA but could be wrong

It looks like it's still got the original factory exhaust, unfortunately there's a hole in the exhaust that has evidence of being patched in the past. 

We are both struggling to find a replacement middle and rear section of exhaust for this particular model. 

Any assistance would be greatly appreciated, whether it's part numbers or links to a reasonable priced exhaust. 

I'm going to try TPS when they open.