https://autotalent.com/collections/frequency-intelligent significant power gain faster spool up and better throttle response increasing the life of the turbos reducing under hood temperature adds a very nice tone to the exhaust 100% bolt-on installation 100% hand crafted 100% TIG welded and back purged highest quality 1.6mm wall 304 stainless steell OEM-spec bottom ball flanges Ball Joint Clamps all brackets and mounts as on OEM unit 5 year warranty against any defects given to original owner