From what I have found recently, is that not very many aftermarket duel exhausts make any power difference.

Has anyone changed just the back boxes on their exhausts ?

I had a mate back in SA who did so, and it sounded awesome !

got any sound clips of yours ?

Can you recommend where and what to buy ?

 

Yes i did with magnaflows on stock exhaust but it droned, however it didnt lose any power or gain any IIRC.

 

aha, so clearly not worth doing.

the last thing i want is droning on my daily runner