Wiseco piston
Hi,
I used a Wiseco piston for the last 150 engine hours (this for the rumours that its last less then OEM), on my KTM360 '96, and then sell the bike :-), but it's was great, the engine was running great, no heating problems, no special noise or other issues. For the performance... the bike run much better, but be ware that Eric gorr done some good work on it, so I'm not sure it's because the piston.
Ziv