Wiseco's- we had some trouble early on because the Toyota 1ZZ bores vary a bit (!?!) and we were producing stock replacement pistons that required no overbore- this caused a cold rattle in the looser engines. We no longer offer those stock sized pistons, we only offer a 0.5mm overbore now, which works great every time. No noise.
And the above is our new big bore kit- the pistons are intentionally very oversized to match the big 82mm sleeves. They also run quiet, but punch up the power output.
Matt @ Monkeywrench
2001 Celica LSR car 823whp 2ZZ @ 41psi / 10.9@140 at 28psi / 202mph @ 25psi in the standing mile
2000 Celica GT-S 412whp with MWR turbo @ 16psi and stock engine / 550whp with MWR turbo @ 26psi on 93 octane - 11.5@129 on 93 octane
2005 Lotus Elise V6 295whp NA / 360whp 3.5psi SC
2001 MR2-S turbo - 508 whp - 10.85@130