Ive got an evo 6 intercooler on mine and cant fault it.Was ok upto 400bhp with no problems,gearbox didnt like it though.I use the cash for another mod as a new one might look nice and shiney but still only do the same as the one you have got already.Ebay seems hit and miss,its not fair to say there crap as with anything some are good some are bad.Ive seen a couple from ebay on mates cars,one had perfect pipe runs and looked really well built but the other was fair to say just crap.Badly welded and the pipe run was a mile out and made of cheap chinese metal,so pot luck really.