Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings YMM_2007_2012_Porsche_911_997_GT2_RS_GT3RS A higher percentage of carbon

A higher percentage of carbon and silicone is present which leads to the formation of graphite during the curing process

and 2012–2021 Scion FR-S models

SPC Performance X-Axis Flex Joint (15623)

It serves as a direct replacement or upgrade to factory units

Its design emphasizes both performance gains and a bold auditory presence

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings YMM_2007_2012_Porsche_911_997_GT2_RS_GT3RS A higher percentage of carbonThe Manley Platinum Series pistons are high performance forged components designed for Subaru WRX STi models equipped with the EJ257 engine. Crafted from 2618 alloy forging, these pistons provide exceptional strength and durability under demanding conditions. They feature proven cam and barrel skirt profiles, moly skirt coatings on select part numbers, and tool steel wrist pins, ensuring reliable operation during high performance tuning and racing