Nissan Sunny GTi-R and 200SX (S14) Piston Ram Closed Loop Dump Valve

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner Made from billet aluminium and hand polished in the UK, this recirculating diverter valve dumps the charge-air back into the air intake system keeping external noise to a minimum. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. In The Box: 1 x FMGTIR017 Valve 1 x Forge Sticker If you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below. If you are unsure if this product is suitable for your application, please contact us.