OBX Performance Exhaust HEADER 08-11 LANCER 2.0L 4B11 FED 2pcs Dyno tested and track proven sytstems Value Added Direct bolt-on/ Weld-on Setup without modification with Accessories Included as shown Premium T-304 stainless steel mandrel bend for ultra fast flow Precision Computer CNC machined flanges with TIG and MIG welded construction Backed by Limited Lifetime warranty from manufacturer defects