A method of enhancing the operation of an emission after treatment system in a combustion system includes supplying a fuel and additive that includes a manganese compound to a combustion system. The air bag module includes an air bag housing, a air bag cushion, a tubular gas generator, a air bag cushion holding device, and a gas guiding device, to which the tubular gas generator is fastened. The method also includes activating an energy source to speed cure of the deposited ink on the substrate. A processors for processing signals to provide cross-correlated shaped in-phase and quadrature-phase baseband signals, spread spectrum and OFDM baseband signals. The braking member extends about at least a portion of the exterior of the cam body and is positioned to progressively engage the boss member as the cam body rotates within the handpiece.