hmm funny thing is it passed in the same garage last year.. when i took it the tester said hmm bit loud that! someone else said "oh its supose to sound like that!" its a cosworth..!

I have the middle box removed so that probly dont help. so now want to find a backbox thats quieter, or replace the whole lot.. would like the look of the original backbox if i can get it to fit the 3" system with an adapter! anyone know who sells an orignal looking backbox, lookin on feebay now see if anythings about.