Had it, Liked it, Got tired of it.
So, went with a catless mid pipe and a Remus quad setup and LOVE it.
There is no comparison in sound or performance.
M-tech 330i JB/TERRA modded - RIP
n54 135i AW/CR JB3 FBO 420rwhp 444rwtq - 11.5 sec 1/4 mile @ 122mph - RIP
e53 X5 4.8is M///BLUE/M///SUEDE - 357awhp 369awtq - The Snow Beast!
n54 135i JB/CR JB4 FBO - tc kline coilovers - 1/4 mile and dyno PENDING