Apex Downpipes replace the factory downpipe and catalytic converter and significantly improve exhaust flow. Stainless steel flex joints are used to dampen the cat-back exhaust system from engine vibrations. GT downpipes are constructed entirely of SUS 304 stainless steel. Apex downpipes are for off-road use only. This downpipe starts as 60mm on the turbo side & grows to 80mm on the exhaust side.
