Pressure Below of Valve, Modified Car Diesel BOV, Diesel Below of Value

 Easily adjustable to eliminate compressor surge and preventing premature boost leakage, while increasing boost response between shifts. Eash valve is made of durable cast and billet aluminum frame and the valve to diaphragm ratio provides performance that cheap piston types cannot offer. The spring stiffness adjustment screw and the three different sizes give the user the option to match vehicles with mild upgrades to heavily tuned diesel engines.  

Detail Picture

about Us

Guangzhou BYC Auto Parts is the trading office of BYC (China) in Guangzhou who produce racing steering wheels, racing seats and carbon fiber auto parts for a long time. Guangzhou BYC Auto Parts also involves in stock selling relative auto parts like seat belt, shifting knob, auto films, braking pedal, performance parts, car tunning emblems, handbrake, mufflers and so on, act as a trader, wholesaler, Distributor and agent.

based on our mother company(BYC (China) LTD)'s factory, we are able to carry and have carried a lot of OEM(Design, Develop) orders of racing seat, seat belt, and seat belt cover as well as metal and plastic molding orders.

Since BYC was established, customers satisfaction and high product quality is our service destination. We are working on the best price, high quality and various choices for car modification lovers. We are focusing on core products improvement, and at the meantime dedicating in the enrichment of choices to meet the multiple needs of customers all over the world.

We sincerely hope that companies and friends from different countries over the world would contact us for more product information, price negotiations and business development. Win-win business cooperation is our ultimate development target!