Gravity Performance Downpipes instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our Downpipes are designed to be direct replacements for OEM downpipes, ensuring smooth installation every time. ---Manufactured from highest quality T304 grade stainless steel ---Mandrel bent and fully TIG welded for strength and durability ---Free flowing catalyst replacement to get the most from the Z20LEH engine ---Designed to improve power and torque across the entire RPM range ---Sold for off-road and track use only Fitment: Vauxhall / Opel Astra G MK4 GSI Z20LET 98-04 models Vauxhall / Opel Astra H MK5 VXR Z20LEH 04-10 models Vauxhall / Opel Zafira B MK2 VXR Z20LEH 05-10 models.
