This MBRP exhaust system is perfect for Toyota Tacoma owners from 2001 to 2005 with 2.7/3.4L engines (4x4 only). If you live in a dry area or are on a budget but still want great performance and sound, this is for you. Use it for daily driving or weekend adventures. It features 2.5 - inch tubing and is made of heavy - gauge aluminized steel, which gives it a solid build while allowing for maximum exhaust flow.