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 US highway cycle, the Rankine cycle system regenerated three times as much energy as the vehicle’s regenerative braking system. A French company, Exoès is specialized in designing and manufacturing exhaust heat recovery systems based on Rankine Cycles. The system EVE, Energy Via Exhaust, leads to fuel savings from 5 up to 15%. Barber-Nichols Inc. develops Rankine technologies for vehicles. The German consortium unites the majority of internal combustion engine manufacturers across the world. Two task forces are currently studying exhaust heat recovery systems on passenger cars. Renault Trucks: As a part of the All For Fuel Eco Initiative, Renault Trucks