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 studies a Rankine system for long distance vehicles that could lead to 10% fuel savings. The goal is to produce enough energy to feed the components and electronic auxiliaries with electricity and reduce the fuel consumption by reducing the load on the alternator. Double Arrow Engineering's WildFire Heat Recovery System (WFHRS) is underdevelopment and utilizes wasted heat from both coolant and exhaust. This system mechanically adds power back to the drive-line, utilizing a Rankine engine as the energy conversion method. The WFHRS is designed for a verity of different applications, both fixed and variable RPM, aftermarket and OEM applications, but