The only way to boost a motor is to use forged pistons....stock cast pistons break apart during any detonation, which means you have to run a super conservative tune (low boost!), leaving tons of available power on the table. These wiseco pistons were purchased for a customer build that got cancelled. These normally sell for $599 + shipping (through mwr, etc) but somebody is going to get these at dealer cost as I don't want to sit on them as we don't see many 1zz.
These 1ZZ pistons from Wiseco are forged from 2618 aluminum and machined to exceptional tolerances. They are designed for tighter piston to cylinder clearances than other aftermarket pistons to minimize piston slap and cylinder bore wear. These are excellent pistons for street or race.
Every piston set includes 4 pistons, premium quality piston rings, precision chromoly wrist pins and retainer rings.
0.5mm overbore requires a bore and hone of your block (sleeves not required.)
10:1 Compression Ratio (same as stock) for naturally aspirated, nitrous, and low boost applications