Big size valve is indispensable item for tuning M type engine. RRP Big Valve Kit can be reality to power up and torque up for tuning with high camshaft and bore up engine.
Intake valve : stock valve 30mm diameter
RRP Big Valve 33mm diameter
Exhaust valve : stock valve 25mm diameter
RRP Big Valve 27mm diameter
To fit RRP Big Valve Kit to your car, the valve sheet ring change and processing are required. As for intake side, the valve sheet ring change is required because of the size is bigger than normal size. As for exhaust side, you need to process the sheet ring to be fitted. We strongly recommend you to ask a professional mechanic with much experiences and skills to install, processing and maintain this product.
Improper installation may cause damage to the engine of your vehicle.