K-Tec Racing Power System Side Exit Exhaust System is in house designed, stainless steel side exit exhaust system. It is a 2 1/2" bore system and features mandrel bent pipework (no loss of diameter at the bends) an ultra free flowing 2 1/2" bore silencer. It is fully road legal and produces probably the best power increase available from any system on the market due to the minimal back pressure created by such a free flowing design. Secondhand