Developed to maximize turbo - diesel efficiency, Quick - Turbo provides massive instantaneous torque, BigHead Wastegate delivers quick, controlled turbo boost. 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. Banks exclusive BigHead wastegate actuator prevents wastegate blow - open by keeping the valve seated at higher pressures, increasing mid - range torque and top - end power. Please note The Quick - Turbo will not fit 2001 - 2002 models with the HY35 turbo (automatic transmission, 235 - hp rated engine). The quick turbo will fit the 2001 - 2002 models with the HX35 turbo (manual transmission, 245 - hp rated engine).