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
Aftermarket exhaust parts pipe or the pipes temporarily merge. This is to equalize the pressure in both exhaust pipes. Exhausts emit a large amount of heat into the engine bay, which can have a negative effect on engine performance by raising the underhood temperatures. As a result, high temperature insulation is used, more commonly known as heat barriers, for exhaust heat management. Thermal barrier ceramic-coatings are specifically designed to reduce heat loss from engine exhaust system components including exhaust manifolds, turbocharger casings, exhaust headers, downpipes and tailpipes. When used under-bonnet, these have the positive effect of reducing engine bay temperatures, therefore lessening the