MVaux Turbo kit.. Which rings and pins? 87MM

[r.wadge]

Got IASA 87mm pistons with my old mvaux kit for my c20let, but im not sure what ring set to use, and what length the pins are. All i know is the pin diameter is 21mm.
Any help much appreciated
Cheers!

[philip]

Pins should be fine, can you not find an iasa stockist and order rings to suit? Otherwise you can measure the rings and get a set from anyone like omega, pec, catcams, etc or even oem ring set like mahle. Are the pistons a proper forged piston? Just never personally heard of iasa?