Latest Development: 4.25L GT4 Performance Engine Upgrade
The street engine was designed with TQ as a priority and plenty of HP, we wanted a motor that pulled strong from 2500 to 6000 RPM. Our 4.25L engine in street trim produced 376.2 rwtq at 5600 rpm and 445.5 Peak HP at 6300 rpm.
The “Street/Race” version of the 4.25L engine was developed with maximum peak HP in mind. Utilizing the factory GT3RS intake manifold we mated it to our 4.25L engine to produce 488.5 rwhp at 7900 rpm with 360 rwtq at 6200 rpm.LEARN MORE