3" TBE no cat HKS racing pipe, gold hue back box with 4" tip hehd totally lurve the boxer rumble, thats what made me fell in love with scooby in the 1st place.

I do have a manual xhaust valve plate fitted at the dwnpipe/midpipe junction tho, when engaged it really mutes the xhaust note to just almost like a whisper . . .very handy when the 5-0 around