Features: 1.45mm long. Improves gas mileage.? 2.Built to last and resistant to extreme heat related fatigue.? 3.Designed specifically to bolt on and easily install within minutes. 4.CNC machined 304 stainless steel for ensuring strength and durability.? 5.Universal fitment for most vehicles with the M18*1.5 O2 sensor hole. Specification: Features: _x000D_ 45mm long. Improves gas mileage. _x000D_ Built to last and resistant to extreme heat related fatigue. _x000D_ Designed specifically to bolt on and easily install within minutes. _x000D_ Universal fitment for most vehicles with the M18*1.5 O2 sensor hole. _x000D_ CNC machined 304 stainless steel for ensuring strength and durability. _x000D_ No additional modifications, cutting or welding required to be installed completely. _x000D_ Designed for competition race purposes only, may not be used on highway vehicles. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: Stainless Steel _x000D_ Color: Shown as picture _x000D_ Length: 4.5cm / 1.8in _x000D_ Diamter: 2.2cm / 0.87in _x000D_ Package Weight: Approx. 98g _x000D_ Placement on Vehicle: Rear _x000D_ Fitment: Universal Fitment for all 18MM threaded sensors _x000D_ _x000D_ _x000D_ Package List: _x000D_ 2 * Oxygen Sensor Extender PackageList: