Had this installed for about 2 weeks or so now, the sound is incredible!!
Loads of turbo spool noise, and makes your stock Bosch diverter valve sound Very loud!
The noise is audible from some distance away.
this upgrade will turn some heads.
As for acceleration, turbo spooling is quicker, therefore increasing power somewhat, not a HUGE performance upgrade. took about 45 mins to install!
Definitly worth the $80
I highly reccomend this!

Rating: [5 of 5 Stars!]