Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.75mm +0.25mm Bore 8.5:1 Dish Piston Set with Rings Seat Rails so the ECU must be

so the ECU must be modified for use with the Hondata s300

GSC P-D Toyota 3STGE 23-8N Chrome Polished Exhaust Valve - 30mm Head (+1mm) - SET 8

7mm Stroke 4340 Billet

Manley MazdaSpeed 3 MZR 2

Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.75mm +0.25mm Bore 8.5:1 Dish Piston Set with Rings Seat Rails so the ECU must beManley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99. 75mm +0. 25mm Bore 8. 5: 1 Dish Piston Set with Rings This Part Fits: Year Make Model Submodel 2006 2012 Subaru Impreza WRX 2006 2007,2010 2012 Subaru Impreza WRX Limited 2009 2012 Subaru Impreza WRX Premium 2004 2012 Subaru Impreza WRX STI 2007,2011 2012 Subaru Impreza WRX STI Limited 2010 Subaru Impreza WRX STI Special Edition 2006 2007 Subaru Impreza WRX TR