Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.This Astra VXR performance exhaust is made in 2.5" (63.5mm) pipework and removes the pre-cat, this exhaust fits directly between the turbo and the main catalyst.As long as the car is still fitted with a catalytic converter, this sports exhaust de-cat will still enable you to pass a UK MOT emissions test and police road side checks.All relevant fittings and gaskets are supplied (Except turbo clamp).EML lights may activate after removing the standard O/E catalyst. An ECU Re-map is recommended to correct this problem and stabilise all power increases.