Beneath the bonnet of this Subaru STI

We seem to be developing a bit of a reputation here at Tunehouse; a reputation for building and tuning some very fast Subarus.

This MY09 STI came in for some ‘Tunehouse Magic’ in preparation for this year’s World Time Attack Challenge. A sneak peek under the bonnet reveals a Cosworth 2.6L stroker engine with a billet crank, THR Spec turbocharger and intake system including front mount intercooler.  Look a bit further and you’ll notice a THR external surge tank and motorsport fuel pumps.

EcuTek custom-tuned ECU helps the engine achieve well in excess of 350kW at all fours. Whiteline swaybars, alignment and bracing, Bilstein coilovers with custom spring rates and strut tops ensure that the car handles the corners with ease.

So what’s next for this hot hatch? The decision to compete at World Time Attack Challenge is fairly recent for this customer so a revised plan is being developed to make it grip, go and stop even better than this competent all rounder already does. After that it’s a simple matter of getting as much track time as possible before the event. Stay tuned!

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