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Shop tuning and engine management parts for the Subaru Legacy 2.5GT and 2.5GT spec.B 2005–2012 (BL/BP and BM chassis). The core is the fourth-generation BL sedan and BP wagon (2005–2009, US wagon 2005–2007) plus the fifth-generation BM 2.5GT (2010–2012), all Symmetrical all-wheel drive with the 2.5 L EJ255 DOHC turbo flat-four. From 2007 the spec.B added a factory drive-mode system that changes engine response. You will find engine management, ECU tuning and programmers here — every part in this collection is fitment-tagged for the Subaru Legacy 2.5GT and 2.5GT spec.B 2005–2012 (BL/BP and BM chassis), so check your trim, year and engine against the product fitment notes before ordering.
What tuning and engine management parts fit my Subaru Legacy 2.5GT and 2.5GT spec.B 2005–2012 (BL/BP and BM chassis)?
Every part in this collection is fitment-tagged for the Legacy 2.5GT or spec.B, but fitment splits by generation, body and trim: BL/BP cars run 2005–2009, the BM 2.5GT runs 2010–2012, the US spec.B is sedan-only, and transmissions range from 5-speed manual and 5-speed automatic on the GT to a 6-speed manual on later spec.B and BM GT cars. Confirm your chassis, year and trim on the product page before ordering.
What is SI-Drive on the Legacy spec.B?
From 2007 the spec.B got SI-Drive with Intelligent, Sport and Sport Sharp modes that change throttle and engine response. It is a tuning-relevant factory system the earlier cars lack, so check compatibility with your year and trim when choosing engine management.
Where can I find other parts for my Subaru Legacy?
Start with the full Subaru Legacy collection linked at the top of this page, or jump straight to a category — Brakes, Drivetrain, Engine, Exhaust, Exterior, Intake and more are all linked above, and every one of them is scoped to the Subaru Legacy only.