This is ZZP's replacement to our old Whisper resonator, it is very quiet for a free flowing 3" resonator.  

This took years of designing to create a resonator that actually reduces drone and reduces the loudness of an aftermarket exhaust without sacrificing power.

Everybody buys an aftermarket exhaust and then their wives or girlfriends or neighbors complain about it.  This won't cure all those problems, but it definitely helps and makes driving your vehicle more pleasant when you are cruising, but still gives you that mean sound when you get on the gas.  It helps reduce that annoying sound while just cruising or on the highway when you don't want it to be loud and obnoxious.    This reduces those problems more than any resonator on the market.  Many trial, errors, testing, etc over the years to come up with this great item.  This outperforms every single Magnaflow, Vibrant, and Borla as we have tried them all with our catback exhausts before we were forced to design our own because none on the market met our needs.

We carry these in 2.5" inlet and outlet also.  Search our other auctions to find it.  

This is a universal design.  Will fit any aftermarket exhaust if you have a straight piece in your exhaust system that can support this length

 
 Our 3" version measures 28" end to end, with a 22" x 5.5" body.