GFB Respons Dual Port/Mach 2 Plumb Back BOV Blow Off Valve KitALL THE PERFORMANCE WITH OR WITHOUT THE NOISE! Give your Kia Stinger the sound you want, and the performance to go with it! This is a combination kit for the Stinger that mix the valve types! Since both valves are fed from a common chamber, and there is no MAF sensor, it is no problem to mix and match valve types and venting bias. Part # T9013 includes one Mach 2 and one Respons TMS, which still allows you to adjust the venting sound, but at a more