Why 2 mufflers on E39 540i Sport? - BMW Forum

Sideways 540 · 03-16-2004, 06:59 PM

Hi guys, a few months ago I picked up a 2003 E39 540i Sport, 6spd. The car is definitely a tire burner, but I'd like to open up the exhaust. I noticed it has true dual exhaust, with two front catalytic convertors, and then an enormous muffler assembly thingy behind the differential. Also, behind the bumper, why are there two mufflers. If I were to remove one of the rear mufflers, how loud would the car be?

thanks,
Chris

Sideways 540 · 03-17-2004, 09:59 AM

ttt, can anyone help me?

Sideways 540 · 03-18-2004, 07:47 PM

TO THE TOP, is there any tech information here, or is there a better forum out there that discusses more than body kits and boomboxes...

EXtech · 03-18-2004, 09:35 PM

Welcome sideways. Don't hate the forums, this is actually a really good board. We're glad you're here, now lets see if we can help.
Personally I wouldn't recommend removing the muffler(s). I would opt for an aftermarket cat-back assembly, this will sound the best and keep the decible levels down.
I hope you enjoy your car, you made a great choice !

EX