The E-Series® FZ-09 Slip-On Kit features performance very similar to a full exhaust system when combined with the Fuel Moto ECU Flash upgrade. The OEM headpipes are very well designed and combined with the E-Series Slip-On, offers substantial performance gains. We utilize aerospace quality Carbon Fiber pre-preg material for the Muffler shell, coupled with a UV compound within the resin itself. We then incorporate lightweight Titanium and Stainless Steel components to complete your new E-Series system. This design provides maximum flow and attenuation of sound waves to create an awesome deep, low frequency exhaust tone; further accentuated by our evolutionary tunable elliptical diffuser disc system. The TIG welds are applied by expert craftsmen and completely by hand. The 304 series stainless steel mid-pipe features an internal inlet nozzle to increase exhaust flow speed. Also included is an 18mm O2 Bung that will accept both the OEM and/or Wideband Sensor.