Variable Exhaust Valve System

We are offering variable exhaust valve system.
product description:
arma variable exhaust valve system and it can solve the friction among horsepower, torque, and noise. Moreover, the exhaust valve can also prevent power lose while the vehicles run in low rpm. We sell obd2 plug & play connection for vev system if you need. Plug & play obd2 adapter reads vehicle signals directly and avoid complicated wiring. You just set up at which rpm to open the valve by arma ecv controller.
product feature:
a. Obd2 plug & play connection.
B. Easy to install by yourself.
product specification:
size for variable exhaust valve: 76mm63mm
obd2 system: optional