3.0" (76 mm) Electronic Exhaust Cutout System - Stainless Steel - Slip Fit w/ Band Clamp Made to fit round 3 inch diameter exhaust pipe Bend Type Straight CNC 6061 Aircraft Quality Aluminum Body Construction "Smart Chip" Controlled Motor Offers "One Touch" Operation Rocker Switch No More Needing To Hold The Switch Which Usually Damages The Internal Gears Stainless Steel Butterfly Plates & Blade Shafts Unique V-band Clamp Allows Turndowns To Be Rotated 360^ For Ultimate Adjustability Polished Stainless Steel Turndowns Offer 45^ Slanted Discharge Angle High Torque DC Gear Reduction Driven Motor Insures Total Open and Total Closed Operation Every time. Drive Gears Made of High Temperature Carbon Steel.