Gravity Performance decats instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our decats are designed to be direct replacements for the OEM catalytic converter, 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 1.4TSI engine ---Designed to improve power and torque across the entire RPM range ---Sold for off road and track use only Fitment ---Audi A3 8P models 1.4 TSI 2007-2013 ---VW Golf MK5 & MK6 1.4 TSI models 2007-2013 ---Seat Leon 1.4 TSI models 2007-2012 Please note: This decat is compatible with 122bhp and 125bhp models only.