Banks developed the Quick - Turbo in conjunction with the Holset turbocharger and Cummins Engine companies, to eliminate sluggishness out of the hole and produce strong acceleration. Quick - Turbo produces massive torque right from idle, achieves a higher peak faster, maintains more boost through the powerband, and doesn't over - boost. Add Banks exclusive BigHead wastegate actuator to prevent wastegate blow - open by keeping the valve seated at higher pressures, increasing mid - range torque and top - end power. Also add Banks high - boost compressor wheel to correct boost - level limits in late 1999.5 - 2003 models, built for higher boost levels without compromising turbo performance.