Exhaust system to open air — everything from the header back. Header-back systems are generally produced as aftermarket performance systems for cars without turbochargers. The Turbo-back (or turbo back) is the part of the exhaust system from the outlet of a turbocharger to the final vent to open air. Turbo-back systems are generally produced as aftermarket performance systems for cars with turbochargers. Some turbo-back (and header-back) systems replace stock catalytic converters with others having less flow restriction. Some systems (including in former time all systems) (sometimes nowadays called catless or de-cat) eliminate the catalytic converter. It is illegal and is against Federal
Exhaust heat recovery system Chinese regulation, more and more stringent concerning CO2 emissions, exhaust heat recovery sounds like one of the most efficient ways to recover a free energy, since heat is generated in many ways by the engine. Numerous companies develop system based upon a Rankine Cycle: The German company has been one of the first major to study exhaust heat recovery with a Rankine system called Turbosteamer. Honda also develops a module based on a Rankine Cycle to improve overall efficiency of hybrid vehicles, by recovering the heat of the engine and turning it into electricity for the battery pack. In the