A comprehensive handling enhancement for the 2018 STI includes the revised suspension tuning as featured on the WRX, plus a revised DCCD AWD system, significantly upgraded brakes and this model\’s first-ever 19-inch wheels. The DCCD system, which previously used a combination of mechanical and electronic center limited slip differential control, now uses electronic control for quicker and smoother response. The 19-inch alloy wheels feature a striking Y-shaped spoke design and carry 245/35R19 tires that help raise cornering performance while giving the STI an even more aggressive stance.
The yellow-painted brake calipers identify a significantly upgraded Brembo Performance Brake System that now uses stronger monoblock 6-piston calipers in front, monoblock 2-piston calipers in the rear and larger, drilled rotors all around for better heat dissipation. New brake pads provide significantly greater surface area for improved braking feel and fade resistance. The STI also offers the Recaro seats (standard on STI Limited, optional for base trim).