S4, Tamora, Conti GT
Noticed over the last few weeks a slight blowing noise from under the middle of the car, took it to quick fit and they said it needs resealing at both ends of the cat, what do I need to do this? Would have just got kwikfit to do it but they can't get the parts in. If i buy the bits myself quite happy to do the work, whats needed to reseal at each end