I got the Librands manifold and 200cell cat on my 4/4 Sport but have still the original silecer fitted. I was afraid the Librands silencer would be too noisy, too close to the sound of tuned young boys cars.
A deeper burble would be no problem, but screeming noise is not the thing I like.

Can anyone describe the sound of the full Librands sports exhaust system? (2011 production model 4/4 Sport with a 1600ccm Sigma engine)

Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life