STI STD 08-15, Stage 3 Tuning Package and ECU Remap: 460-500 BHP
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spark plugs
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STI STD 08-15, Stage 3 Tuning Package and ECU Remap: 460-500 BHP

£0.00

Perfect for track enthusiasts and adrenaline seekers, the Stage 3 package transforms your STI into a high-powered, race-ready machine.

Base price is for a Custom ECU Remap, then please check the boxes next to the parts you require.

 

 

 

EXHAUST, PLEASE CHOOSE ONE:

TURBO, PLEASE CHOOSE ONE:

SUPPORTING HARDWARE:

TUNING OPTIONS:

ADD-ONS:

Order total:
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Description

The 2008-2015 Subaru STI Stage 3 Tuning Package unleashes extreme performance, delivering an incredible 460-500 BHP. This comprehensive upgrade includes a Tuned by Tim Cox turbo, upgraded injectors, fuel pump, high flow decat or sports cat downpipe made from stainless steel, and other supporting modifications. Combined with a custom dyno-tuned ECU remap, this package maximises power, torque, and throttle response while ensuring engine reliability. Perfect for track enthusiasts and adrenaline seekers, the Stage 3 package transforms your STI into a high-powered, race-ready machine.

Note:

The EJ257 Has weak Pistons – it is highly recommended to have at least forged Pistons With Stage 3 and Above over the 420bhp range.

The 08 STI has Twin AVCS, this helps spool and torque, hence the slight increase in power throughout the stages.

 

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