Just fitted a Racebox backbox to replace the PPP one on my 02' WRX, are my ears deceiving me or does it not sound as good as the PPP one ? Have to say so far I am really disappointed with it, might be swapping it back tomorrow !

 

I used to have one and sold it.. for a Prodrive backbox.... now I have an Afterburner Vortex....

You are right in saying its not as loud as a prodrive one....

Andy