Forge Piston Ram Dump Valve for Evo 4-X (FMDVEVO14) Finish:Black Excess fuel in the surge

Excess fuel in the surge tank is returned back to the vehicle's main fuel tank

Tesla S 60D 2017

045" (Large)

CZ4A 2011-2015 Evolution X

The Boost Logic Forged Pistons come as a comprehensive kit

Forge Piston Ram Dump Valve for Evo 4-X (FMDVEVO14) Finish:Black Excess fuel in the surgeMade from billet aluminum, this atmospheric diverter valve dumps the charge air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. Vehicle Fitment: 2008 2015 Evo X (GSR, MR and Final Edition models) 2001 2006 CT9A Evo 7 8 9 (GSR, RS, SE and MR models) 1996 2001 JDM Mitsubishi Lancer Evolution 4 5 6 models