Originally Posted by HomeRun217
Glass packs? This isn't a 69' Camaro.
For the same aforementioned reasons... $$$
You can bet a decent cat-back system for the 550i will start at $1,600. With cutouts you're saving yourself $1,000+ and retain the stock look while getting the rumble.
Look at all the guys doing muffler deletes on their 335i's, you'll get pretty much the same effect with cutouts.
Muffler deletes belong on civics. I know a handful do it, but it really sounds bad.