Quiet core(cap) fits our slip-on exhausts
Fits into one of your outlets which makes sound waves bounce inside that tube and reflect back, making it quieter than a single outlet exhaust.  Because of our exhaust design, this quiet core does not reduce flow or horsepower on any 1000 motors, and does not reduce horsepower on turbo models until running over 21PSI of boost.  
Lower's sound by roughly 5-7db's
Installs with 1 bolt in only a few seconds
Includes the black anodized stealth cap and bolt