Invidia Test PipesNote: Suitable for VQ35HR motors only. For VQ35DE see listing here. INVIDIA CAT PIPE The factory exhaust will always have restrictions and these restrictions are normally highest near where the catalytic converter is found. Invidia Exhausts use a larger pipe diameter and smooth bends which allows exhaust gases to pass with fewer restrictions and turbulence. A High Flow catalytic converter is then utilised to still control emissions for street driving
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