[BASELINE]

Anyone remove the secondary cat and replaced it with a straight pipe while keeping the center resonator!? Any changes in sound?

Thanks

[E90ROXS]

Originally Posted by BASELINE

Anyone remove the secondary cat and replaced it with a straight pipe while keeping the center resonator!? Any changes in sound?

Thanks

It sounds about 15% louder. No drone. With JB4 ebabled + Sport+ mode, your car is a beast.

[verheizer]

The secondary cat is IN the downpipe. You have got two resonators. Get rid of them and it sounds great.

[STR8-6IX]

Originally Posted by verheizer

The secondary cat is IN the downpipe. You have got two resonators. Get rid of them and it sounds great.

it depends on which car you have. older models like the e90, e60 or basically anything with an n52/n54 have secondary cats.


like someone above me mentioned, more engine sound, slightly deeper and throatier exhaust note and no drone.

but contrary to what he said, dont delete your resonators. they are there for a reason.