CAT diametre

[swanmr2]

Hi

Im considering buying this sports cat as quite simply its cheap, does anyone know the diameter of the standard system wanting to replace the old cat  with this.

http://www.ebay.co.uk/itm/Universal-High-Flow-3-Sports-Catalytic-Converter-Cat-/220664459555?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3360a07123

I have a completely standard exhaust setup apart from the pre cats went as soon as I got the girl.

Also considering.......

http://www.ebay.com/itm/TOYOTA-MR2-MRS-SPYDER-W30-DUAL-CATBACK-EXHAUST-SYSTEM-/170770675522?pt=Motors_Car_Truck_Parts_Accessories&hash=item27c2b9b742&vxp=mtr

as the back box.

Would welcome thoughts and feedback

have a budget off about 400£ for a new system
Cheers

[Anonymous]

Sorry I don't know the answer. However, the back box is something quite sort after this side of the Atlantic because not many people are willing to pay the shipping costs to bring one over.

On another note, you could go to somewhere like powerflow and get a complete manifold back system with sports cat built for around £400