RTI Technologies' FluidPRO ATX + Boost Automatic Transmission Fluid Exchanger Series decreases fluid exchange times in low-flow ATF applications during coolant-line mode. This feature incorporates an additional diaphragm pump (+ Boost pump) that reduces transmission pump back-pressure to greatly improve fluid flow; it does not apply fluid pressure to the inlet side of the vehicle's transmission pump. A typical 12-quart fluid exchange will average between 4-5 minutes for most vehicles.