ays?Product Features* Increases high air flow, instantly gains 10 -15 Hp. / Tq.* Made of high quality Aluminum alloy* TIG welded CNC machine flange* O2 sensor bung insertion and metl gasket included* 1.50" inlet; 2.00" outlet* Professional installation is highly recommended?Technical equipment The company has more than 50 sets of production equipment, including more than 20 sets of high-precision equipment.?Our service1.Any time you can contact with me,we will reply you in 24 hours.2.All our