You are buying on 100% Brand New of: EPMAN New Boost Activated Exhaust Cutout / Dump 51mm/60mm/63mm/70mm/76mm Close Style Preure: About 1 BAR For BMW e90Preure: About 1 BAR Item Name:Exhaust Control Valve Set Exhaust CutoutCloseStyle QTY: 1PC Starting Type:PositivePreureMaterial Type: Made of Stainle steel 304The preure range: -2 psi - 5.5 psiPart Name: Electric Exhaust Catback Downpipe Cutout System Replace Name: Down Middle Axle Pipe Back Muffler Exhaust Cutout Valve Condition:Close The valve is CLOSE at free condition Available Diameter of Butterfly Valve:51mm(2"), 60mm(2.35"), 63mm(2.5"), 70mm(2.75"), 76mm(3"), 89mm(3.5"), 102mm(4")Fit With Exhaust Cutout Valve Pipe OD(approx.):51mm(2"), 60mm(2.35"), 63mm(2.5"), 70mm(2.75"), 76mm(3"), 89mm(3.5"), 102mm(4")as blw: Part NO.Fit Valve Pipe OD SizeValve In Free ConditionStarting TypeActivation ModePreureCUT51-CL51mm(2")CloseNegativePreureVacuumActivatedAbout 1 BARCUT60-CL60mm(2.35")CUT63-CL63mm(2.5")CUT70-CL70mm(2.75")CUT76-CL76mm(3")CUT89-CL89mm(3.5")CUT102-CL102mm(4")CUT51-OP51mm(2")OpenNegativePreureVacuumActivatedAbout 1 BARCUT60-OP60mm(2.35")CUT63-OP63mm(2.5")CUT70-OP70mm(2.75")CUT76-OP76mm(3")CUT89-OP89mm(3.5")CUT102-OP102mm(4")CUT51-CL-BOOST51mm(2")ClosePositivePreureBoostActivatedAbout 1 BARCUT60-CL-BOOST60mm(2.35")CUT63-CL-BOOST63mm(2.5")CUT70-CL-BOOST70mm(2.75")CUT76-CL-BOOST76mm(3")CUT89-CL-BOOST89mm(3.5")CUT102-CL-BOOST102mm(4")CUT51-OP-BOOST51mm(2")OpenPositivePreureBoostActivatedAbout 1 BARCUT60-OP-BOOST60mm(2.35")CUT63-OP-BOOST63mm(2.5")CUT70-OP-BOOST70mm(2.75")CUT76-OP-BOOST76mm(3")CUT89-OP-BOOST89mm(3.5")CUT102-OP-BOOST102mm(4") Please make sure your all dimensions before place order. Rod end bearing linked between actuator and gate leverWe are profeional High-Performance racing parts manufacture.welcome to contact us for customized racing parts and wholesale discount! All items are Brand New unle stated otherwise on the listing. We sell DIY (Do It Yourself) Items with a few exceptions. We take no responsibility in teaching you how to install. Profeional installation is strongly recommended.