2.5 Litre Horizontally Opposed 16-valve turbocharged Boxer with dual AVCS

New generation Impreza WRX STI features an enhanced 2.5 litre Horizontally Opposed 16-valve turbocharged Boxer Engine with a dual Active Valve Control System (AVCS), producing an impressive 221 kW of power and 407 Nm of torque.

Substantial Torque improvement throughout the rev range translates into better response and linear acceleration, designed to exceed the expectations of the most demanding drivers.

The fine tuning of this high performance engine includes the use of intake and exhaust AVCS, increased intercooler efficiency and the new lower positioning of the upgraded 2.5 litre Boxer ‘flat’ design engine, resulting in a more powerful and balanced driving experience.

The potent new engine successfully meets stringent Step 4 emission regulations and achieves lower fuel consumption compared to the previous model.

SI-DRIVE (Subaru Intelligent Drive)

SI-DRIVE enables the driver to choose three different engine map settings on the move.

The 3 modes are:

Intelligent Mode (I) - Smooth, efficient economy driving;
Sport Mode (S) - All round performance;
Sport # Mode (S#) - Truly dynamic engine performance.

From the most responsive exhilarating performance mode (S#) to smooth operating city drive mode (I), you can now enjoy the potential of Impreza WRX STI engine in all situations.

Front inverted strut suspension

An inverted strut suspension type has been featured on the new STI. On top of the improved stability performance yielded by the wider track and shorter overhangs, the road-holding ability of the tyres has been greatly improved by optimising the suspension geometry, including toe and camber angles, andstretching the suspension stroke.

STI advanced Ring-Shaped Reinforcement Body Structure

The new generation Impreza WRX STI uses an advanced Ring Shaped Reinforcement Body Structure, reinforcing each pillar with frames that circle around the body in a ring shape.

Reinforcements are provided to connect firmly between the lower part of the front pillar and upper frames, increasing the strength of the strut attachment onto the body frame. Reinforcements are added to the upper part of the opening of the rear gate.

Through streamlined body construction and the extensive use of high-tensile steel, including 590 MPa–level steel for major body frames, the new model has achieved better body rigidity.