[BassMasta808]

I have a 2018 330i MSport. I believe it has the B48 in it. What are my options for muffler if I want to go dual outlets? Will the factory 340 MPE exhaust muffler fit my car? Just need the 340 diffuser?

[alohasurftoad]

Originally Posted by BassMasta808

I have a 2018 330i MSport. I believe it has the B48 in it. What are my options for muffler if I want to go dual outlets? Will the factory 340 MPE exhaust muffler fit my car? Just need the 340 diffuser?

I am not sure with B48/B58 swap, but IF it is anything like the N20/N55 axleback swap, the mid pipe diameters are different, at a slightly different angle and possibly the one of the muffler hangars are at a slightly different position.

if this is the case, connecting the B48 midpipe to the B58 axle back will be the most difficult part. any exhaust shop can accomplish this easily, though.

[mike@x-ph.com]

Originally Posted by BassMasta808

I have a 2018 330i MSport. I believe it has the B48 in it. What are my options for muffler if I want to go dual outlets? Will the factory 340 MPE exhaust muffler fit my car? Just need the 340 diffuser?

In terms of sound, REMUS is the best in my opinion. It is quad, so you will need to change the diffuser

[thatf30]

I did it to mine a while back with the 340 MPE. Install was super straight forward. Just cut stock exhaust at the dimple and clamp this one on. I've been happy with it ever since. Even with the stock dp, secondary cat, and resonator it still sounds great and the stock burbles have definitely been fun. A great option for an OE exhaust upgrade.

I recently tuned it with BM3 and man I wish I did that sooner. Burbles are addicting.

[Dronamashina]

The best muffler option is to delete muffler...)) Ha ha))

[thatf30]

Originally Posted by Dronamashina

The best muffler option is to delete muffler...)) Ha ha))

The cheapest* option for sure. Not the best, but that's my opinion lol

[Solidjake]

Originally Posted by Dronamashina

The best muffler option is to delete muffler...)) Ha ha))

and worst sounding

[Dronamashina]

Originally Posted by Solidjake

and worst sounding

Not at all if using Helmholtz resonator instead of muffler