632300C-4 Manley Turbo Tuff Pistons EJ257 for 06-14 WRX / 04+ STi Simpson Racing There's a MAF adjustment function

There's a MAF adjustment function provided in the ECMLink application to help with this

AEM’s 30-0302 X-Series 100-300 F/40-150C Digital Gauge combine incredible looks

drill additional holes or stretch hoses to fit properly because it will fit exactly the same as stock

We will have new photos soon

632300C-4 Manley Turbo Tuff Pistons EJ257 for 06-14 WRX / 04+ STi Simpson Racing There's a MAF adjustment functionManley Pistons for the EJ257 motor in the 2006 2014 WRX and 2004+ STi models includes a full set of 4 pistons, wrist pins, ring sets and round wire locks. See more Manley Pistons for the EJ257 WRX & STi Vehicle Fitment: Subaru EJ257 2006 2014 WRX 2004 2021 STi Piston Specs: Part Number: 632300C4 Pin: Standard . 180" Wall Bore Size: 99. 5mm (Standard Bore) Rod Length: 5. 137" Stroke: 79mm Standard Stroke (2. 5L) Comp Distance: 1. 209" Dome Volume: 10