APEXi® Pipe Type Exhaust Control Valve (3.75" Diameter) (155-A021) 4014 They attach in seconds with

They attach in seconds with a simple grub screw design

9 Description_ASM Front Greenstuff 7000 Street sport FMSI D1169 2009 thru 2012 GMC Canyon 3

For current generation instruments

Pro DRY S Filter Media

APEXi® Pipe Type Exhaust Control Valve (3.75" Diameter) (155-A021) 4014 They attach in seconds withPipe Type Exhaust Control Valve (155 A021) by APEXi. Main Piping Diameter: 3. 75". The ECV was created as an alternative to the standard silencer typically fitted in the tip of performance exhaust systems to lower the sound decibel output. The ECV (Exhaust Control Valve) is a spring loaded butterfly valve that can be installed to the main piping of an existing exhaust system. The angle of the valve can be modified on the fly from within the cockpit to