• To prevent engine unsteady in idleness, accelerate incapable and over oil consumption. This kit can detect exhaust back pressure and test the effective of catalytic converter.
• Accessory：
One piece of Main body and PTFE hose (High temperature resistance: over 280℃).
One piece of universal copper joint.
One piece of joint, special for TOYOTA and MITSUBISHI (connect with joint No. 2).