Vauxhall Astra Mk4 Hatch Sportex Exhaust Tailbox Single 3 Tail. This well engineered performance exhaust fits as a direct replacement for the original part on all Astra Mk4 3 door and 5 door hatch models that use the two bolt flange fitment between centre section and tailbox. The Sportex systems and tailboxes are manufactured from aluminised mild steel with polished T304 stainless steel tailpipes.The rear silencer is of the straight through absorption design giving a terrific deep exhaust note without intruding on in-car noise levels. All Sportex tailboxes and systems are now made on state on the art CNC bending machines so you can be sure of a perfect fit every time. When ordering a Sportex exhaust please send the following information with your order.