Aftermarket exhaust parts restrictions in the system—can similarly increase performance, though would likely be illegal in areas where tampering with emissions devices is prohibited, particularly when placed in front of the catalytic converters. Aftermarket exhaust parts Aftermarket exhaust parts are intended to replace the factory fitted exhaust components of a car, motorcycle, or other motor vehicle in order to improve the performance, visual appeal, or sound of the vehicle. Generally, performance enhancements are achieved by reducing the back pressure of the factory exhaust system. Frequently a side effect of a free-flowing exhaust system is either a "different" sound, a higher noise level, or
Exhaust heat recovery system generally geared toward larger equipment such as large on-highway trucks, diesel generators, large buses and motor-homes, marine vessels, medium duty trucks, etc. IFPEN, Enogia and Alstom are developing a system called Trenergy dedicated to improve train fuel efficiency. Fuel efficiency, reduction of CO2 emissions, reliability and costs are necessary parts of Formula 1 manufacturers’ strategies. Automobile sport competitions is a good place to try and assess technologies that, once reliable, are adapted to private cars. As much as kinetic energy recovery system, Formula 1 constructors have produced one of the first exhaust heat recovery systems. Nowadays these devices are essential