PLM Stainless Steel J-STYLE ANGLED ADJUSTABLE O2 CEL (CHECK ENGINE LIGHT) FIX FOULER Adapter Description PLM Private Label Mfg. Stainless Steel J-STYLE ANGLED ADJUSTABLE O2 CEL (CHECK ENGINE LIGHT) FIX / FOULER / Adapter.Installs in the secondary oxygen sensor hole downstream of the catalytic converter.Comes with three changeable flow fittings. FeaturesPrevents CEL (Check Engine Light) / MIL (Malfunction Indicator Lamp) from illuminating when removing the stock catalytic converterO2 Sensor Threads into female endUse one of the three (3) included "jets" to help fool the O2 Sensor and eliminate Check Engine LightsOxygen Sensor Simulator Fitting with Adjustable JetsBolt-on, no cutting or modification of stock wiring like an electronic CEL Fix / MIL EliminatorAdjustable design allows sensor to be mounted in any direction to maximize exhaust clearanceRight angle allows more clearance compared to straight CEL fixesCNC cutInsert one of the three included inserts to restrict gas flowFIttings has been proven to be effective in helping to clear stubborn CELsSimple to installEasy bolt-on installation with typical hand tools, no welding or cutting required.For off-road race / track use onlyNOT to be installed with primary oxygen sensor (sensor before the catalytic converter)Male end threads into existing M18 X 1.5 O2 bungsO2 sensor threads into female end90 Degree bend design is great for spacer clearance issueLENGTH = 1.8 INCHES