hey everyone, i had a quick question. on the evo 9 turbo, does the 10.5 hotside refer to how many centimenters it is? if not, can anyone answer how many centimeters it is? and also does anyone know what coupler would go well with the evo 9 turbo with a AEM intake? the coupler that connects the turbo and intake is such bad fitment and has come off so many times lately.